Casey X Reader - Blog Posts

Believe me pt 3

Jay took it slow as they drove around, listening the y/n as she leaned against the back seat, her eyes closed as she gave directions. Antonio sighed, grumbling as they came to a stop in front of an apartment building. Jay gave him a look as he opened the door to y/n, allowing her to stand still before walking to the entrance of what looked like an abandoned building. Jay grimaced as he looked around at the walls, following y/n as she muttered under her breath. He nearly bumped into her when she came to a stop.

“This was it.” Y/n explained nodding to the chipped door. “You sure?” Jay asked as Antonio eyed him. “Uhuh.” y/n nodded, flinching as Antonio grabbed her to move her away from the door. “Chicago pd.” Jay called out, knocking on the door.

They heard movement behind the door and Jay nodded at Antonio to kick the door down. Y/n watched as the two detectives rushed into the apartment, guns raised before a man came into figure, trying to climb out the window. Jay was quicker, grabbing him before he jumped, while Antonio moved to the bed where another girl lay, bounded up. She screamed as the blind was removed only for Antonio to flash his badge, silencing her. Y/n watched in amazement as Jay handcuffed the guy and brought him out. She shivered as he turned his face to her, and he snarled at her before Jay pulled him away from her. Antonio came out with the victim and turned to y/n, patting her on the shoulder before walking down the stairs.

Outside y/n seen a squad car pull up and a black jeep behind them. She stopped when she seen Kelly running out of the drivers seat, still in gear from their previous call. She allowed him to wrap his jacket and arms around her, before clinging to him as she cried. Kelly hushed her as he rocked her, kissing her forehead before looking at the squad car, glaring at the man in the back seat.

“Y/n, we may need to speak to you again. Catching him in the act is a near guarantee for time.” Jay stated, walking to the fireman and girl. “Does she need to do anything?” Kelly asked, rubbing y/n’s back gently. “A rape kit would be beneficial for evidence.” Jay stated, looking at y/n. “We can go to med now if you want. I can ask April to run it.” Kelly advised, looking down at y/n. “Do we have to do it now?” Y/n asked, looking from Kelly to Jay. “The longer you leave it the less likely the evidence will be accurate.” Jay explained, nodding his head. “Ok.” Y/n sighed, nodding at the two men. “Let’s go.” Kelly sighed, kissing head before guiding her to his car.

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Kelly leaned against the wall outside the room where April had brought y/n. She had called for Natalie to do the examination, but had promised Kelly that she would stay by the young Caseys side for the duration of the exam. The fireman breathed heavily as he rubbed his forehead before looking up when he heard footsteps approach him.

“How is she?” Casey asked, stopping in front of Casey. “I don’t know Casey, scared of what’s to come, heartbroken that her brother didn’t believe her.” Kelly snapped at Casey, and Casey sighed before leaning on the wall beside Kelly. “I know, I feel bad. I took my frustrations out on her.” Casey sighed, head down in defeat. “How could I imply that she lied about being kidnapped, and raped. What kind of brother am I?” Casey exclaimed, throwing his arms out in frustration. “The type who made a mistake. But you’re here for her now. That’s what matters.” Kelly sighed, not wanting to argue with Casey. “Can we see her?” “April and Natalie are doing a rape kit on her. Than she should be good to go.” Kelly explained, and Casey nodded. “Thanks Kelly.” Casey stated. “For what?” Kelly asked, confused. “Believing her.”

Kelly didn’t have time to answer when the door to y/ns room opened and Natalie walked out, April following with a bag in hand. The doctor looked at the two firemen before nodding at them.

“You can go into her now. She’s a little fragile at the minute, these kits take a lot out of victims so be careful with her. She’s good to go when she’s ready.” Natalie explained. “Thanks.” Kelly smiled softly at the women before walking into the room, Casey following slowly behind.

Y/n was sat on the side of the bed, arms around herself as she looked out the window beside her. She turned slightly when she heard the door open, and looked down when she seen Matt behind Kelly. Kelly smiled softly as he moved to sit beside her, offering his hand to her.

“You ok?” He asked as y/n accepted his hand, rubbing his thumb against her knuckles. “I want this over with.” Y/n stated. “I know. And it will be, soon.” Kelly stated, bumping into her slightly. “I think I know what I want to do when I graduate.” Y/n stated, looking at Kelly. “What’s that?” Casey asked, moving his head to the side. “A detective. I want to help people find justice for the crimes against them.” Y/n explained and Casey nodded with a slight smile. “I think, you’ll make a great detective.” Casey nodded, frowning when y/n looked away from him. “I’m sorry I didn’t believe you. I had a bad case, I should of never took it out on you.” Casey explained, moving to be in front of his sister. “It hurt me when you said I was lying. I didn’t think you would say that to me.” Y/n explained, and Casey looked down. “I know I’m sorry. I should of known you would never make something like that up.” Casey stated, shifting in his feet. “Do you believe me now?” Y/n asked, afraid of the answer. “I think I always believed you, I just didn’t want it to be true so acted on impulse with denial.” Casey explained, placing a hand on y/n’s shoulder. “I think that would be an accurate assumption.” Y/n nodded, before moving to wrap her arms around Casey’s waist. “Come on, let’s head to the firehouse, we still have a shift to finish.” Casey smiled, wrapping his arms around y/n and kissing her head. “Can I stay there tonight?” Y/n asked. “Absolutely.” Casey nodded, moving to allow y/n to step up. “I’m sure the gang are looking to see you.” Kelly stated. “Yea, Kelly here left in such a rush didn’t even explain to them what was happening.” Casey exclaimed, nodding his head to Kelly. “I was more concerned about y/n.” Kelly defended himself. “Thanks Kelly. Where would I be without you?” Y/n smiled, leaning into Kelly’s side. “I wonder the same thing.” Case smiled, knowing that he would of never known his sister if it wasn’t for Kelly. “I’m just your night in shining armor.” Kelly joked, flexing his arm causing y/n to giggle and Casey to shake his head.

Believe me (pt 2/3)

warnings: Brief mention of rape, kidnapping

Kelly sat in his office, going over some paperwork as he waited to hear the door to Casey’s office open up. It had been awhile since y/n had arrived to firehouse and seeing her distraught figure, Kelly worried about the girl. He knew that Casey wouldn’t deal with y/n calmly, but he also couldn’t overstep Casey when it came to parenting y/n. Sure he was partly a guardian for y/n, but Casey was her brother, she lived with her and he practically raised her. He moved to his office door when he heard Casey’s open, and frowned when he heard Casey snapping at y/n before y/n appeared out the door, her head hung low as she walked away. He glanced at Casey who shook his head before walking back into the office.

“What the hell happened? Why were you shouting at her?” Kelly asked Casey as he walked into Caseys office. “Making up a story about where she was. I don’t tolerate that.” Casey spoke out. “Well what she say?” “That she was kidnapped. Which is impossible cause she wouldn’t be here if she was.” Casey stated, causing Kelly’s mouth to fall open. “Casey I get we had a bad case, but don’t take it out on y/n. Why would she lie about something as serious as that. Get yourself together.” Kelly snapped before leaving to go find y/n.

Y/n sat outside the firehouse, her knees pulled up to her face as she wrapped her arms around them, crying into them. She tried to make herself small as she shivered in the cold, hoping to be invisible to passerby’s. Her luck ran out as she heard footsteps approach her, and she flinched as she seen them stop in front of her, before a blanket was felt being wrapped around her.

“Thanks.” She muttered, looking up to see Kelly in front of her with a smile. “Well, can’t have my mini mi getting sick from the cold. It’s freezing out here.” Kelly remarked, zipping up his jacket before moving to sit beside y/n. “You want to tell me what’s going on?” He asked, bumping shoulders with y/n to get her to look up. “You wouldn’t believe me.” She mumbled, pulling the blanket closer to her body. “I’ll believe you any day.” Kelly stated, rubbing his hands together before placing them in his pockets. “Your cold.” Y/n remarked, changing subject. “The jacket will keep me warm.” Kelly stated, “Casey told me you were kidnapped? What happened?” He asked, trying to pry details off her. “I was walking to my friend’s house, we were meant to have a sleepover. Casey let me head over on my own.” Y/n explained before looking down to take a deep breath. “Y/n,” Kelly spoke, placing a hand on y/n’s knee before moving away when she flinched. “Sorry.” Y/n apologized, seeing the hurt on Kelly’s face. “It’s ok.” Kelly smiled in comfort. “I took the short cut, down an alley way. There’s never anyone there so I walked quickly to get out of it. This car drove by, I didn’t think anything of it until he stopped just in front of me. I hesitated to walk by when I see he wasn’t moving or getting out, before deciding to go quicker by him. But just as quickly as I passed him the door opened, and I was grabbed from behind.” Y/n stopped as tears built up, and Kelly frowned as he seen y/n so upset, “They put their hand over my mouth, refusing to let me move my head before throwing me into the car. I tried to fight him but he pushed me over to get in beside me before blindfolding me. He had a gun Kelly, I had to do what he told me to.” Y/n cried, bringing her hands up to her face as she sobbed. “Please y/n, tell me he didn’t.” Kelly begged, watching the young girl sob beside him. “He drove somewhere before bringing me to some stairs. I think it was some abandoned apartment because it smelt musty. He brought me to a bed and tied me to the ends.” Y/n moved to show Kelly her wrists, and Kelly moved to grab them lightly. “The next I knew he was on top of me, and all I could smell was his stale breath before it was over.” Y/n cried out, watching as Kelly traced the marks on her wrists. “Y/n, how did you?” Kelly asked, not wanting to finish the sentence. “I waited till I thought he was asleep. When he..” Y/n stopped short, not wanting to say it, and Kelly nodded, knowing what she meant, “the ties must of became loose. I slid my wrists out of them and waited, before I took a chance.” “Y/n.” Kelly sighed, not sure what to say. “See nobody believes me.” Y/n cried, moving away from kelly as she wrapped her arms around herself. “Hey, hey y/n, it’s okay. I believe you.” Kelly spoke, moving to put a hand on y/n’s shoulder. “Your just saying that.” Y/n breathed. “No y/n, I do. I just don’t know what to say to help you.” Kelly explained, rubbing her shoulder gently. “Just being here helps.” Y/n sniffed, rubbing her nose in the blanket around her. “Come on out of the cold, I’ll get you a hot chocolate and we can call Jay to come so you can give a statement.” Kelly spoke, standing up and offering a hand to y/n. “Nobodies gonna believe me.” Y/n mumbled, allowing Kelly to pull her up. “I believe you, and I know Jay will take it seriously.” Kelly comforted her, wrapping an arm around her.

Y/n sighed and eased herself into Kelly’s side. Kelly rubbed a hand up and down y/n’s arm as they walked back into the warm building, guiding her into the canteen before heading to his office with the hot chocolate, and y/n lay on Kelly’s bed as he called Jay, sipping her hot chocolate as she stared into space.

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It didn’t take long for Jay to show up to the firehouse with Antonio. The firefighters I the canteen looked at the two detectives in confusion as they made their way through the canteen and towards Kelly’s office. Dawson called out to her brother as she seen him go by, but he ignored her as Kelly opened the door, shaking Jays hand in thanks.

“I thought it would just be you.” Kelly spoke as he closed the door to his office. “It’s procedure to have two of us when taking a statement. Where’s Casey?” Jay asked, glancing at y/n who was curled up with her hands wrapped around the mug of hot chocolate. “In his office.” Kelly stated. “Can you get him? We can’t question her without him present.” Antonio explained. “no, please don’t.” Y/n begged, causing the three men to look at her. “I’m a legal guardian for her, can I sit in?” Kelly asked the two, and Antonio looked at jay who shrugged. “All you have to do is sit there. If you think the questioning gets too much for her, you tell us to stop.” Jay explained, looking at Kelly with a warning look.

Kelly nodded and looked at y/n before moving to sit beside her. He tapped her knees to tell her to sit up and took the mug from her hand to place it on the desk. Jay took the seat and moved it in front of y/n while Antonio leaned against the desk, allowing Jay to lead the questions. Kelly bit his lip to stop talking as he listened to y/n go in dept with the case.

“Do you know what he looked like?” Jay asked, looking at y/n as she wiggled in discomfort. “I didn’t get to see him.” Y/n looked down. “Your telling us for the duration of your escape, you didn’t see him at all.” Antonio remarked. “Well I wanted to get out, I didn’t think to look back, I just had to get away before he woke up.” Y/n explained, straightening her back. “And he didn’t follow you when you got out?” Antonio implied, and Kelly glared at him. “I heard a car but I just ran to hide so he didn’t see me.” Y/n explained, panicking slightly. “Antonio.” Kelly stated, and Jay held his hand up. “All part of the questioning Kelly.” Jay spoke, smiling at y/n with sympathy. “Do you know where he took you?” Antonio sighed, crossing his arms. “Some musty apartment. It had steps, multiple stairs.” Y/n explained and Jay sighed. “Y/n, you do realize that there is very little information to go on.” Jay explained, and y/n sighed. “You don’t believe me.” Y/n sighed, looking down as Kelly sighed in frustration. “In order to make a plausible case we need more information y/n, I’m sorry but we can’t help you if we’ve nothing to go on.” Jay explained, closing his notebook as he watched y/n. “So she just lives knowing her attacker is out there.” Kelly stated, not liking the answer. “There’s nothing we can do. She doesn’t have a description of anything vital.” Antonio explained as Jay stood up, moving for the door. “I remember the turns. I wasn’t set belted so I was thrown in all directions. It was a dark blue car with a broken brake light.” Y/n shouted quickly, causing Jay to stop in his place. “Do you know the redge?” Antonio asked. “No.” Y/n bit her lip. “If you know the direction I can bring you around the block.” Jay suggested. “Jay you know we…” “Take this as my break.” Jay said to Antonio before indicating for y/n to follow him. “Can you come with?” Y/n asked Kelly before the alarm went off. “I’ll be here when you get back.” Kelly said, kissing y/n’s head before rushing off. “Jay.” Antonio warned. “What’s the worse that can happen?” Jay asked, holding the door for y/n.

Y/n moved out to the front of the house and caught eyes with Casey who watched her walking out with Jay. He frowned as she got into Jays car, wondering what was going on.

Believe me (pt 1/3)

Warnings: Kidnapping and Rape implied *no details*

Y/n Casey was raised by her aunt since she was born. Matt never knew his little sister existed till she was saved by Kelly in a house fire. Matt and his aunt had rarely seen each other, which meant that y/n had never met Casey, yet when Kelly seen the 5 year old girl, he instantly thought she looked a lot like the lieutenant. Y/n had clung to squads Captain after he had brought her to safety, and refused to leave Severide while Brett and Dawson tried to look her over. When it was time to take y/ to med for evaluation, Kelly winded up travelling with them at the back of the ambulance, with the young girl falling asleep on his chest on the way. The captain grew soft for the girl sleeping in his arms, and he knew he wouldn’t be able to leave this call behind. His thoughts were proven as his heart pulled at y/n’s screams as he went to leave her. She only let him leave when he gave her his beanie, with the promise of coming back after shift.

Thankfully young y/n had winded up with only small amounts of smoke inhalation, and was left in the hospital overnight before being discharged. Unfortunately, her aunt wasn’t so lucky, and she winded up dying three days later in the hospital. With no one else in the young girls life, y/n, had to be left to the system ,where she would either be adopted or fostered. Kelly had held her when he was told the news, and as he held her as she cried, something in him didn’t want her to be taken to the system, so he asked April to do some blood tests to see if there were any matches on the systems. Convincing the nurse was easy due to her having a soft place for kids, and after a quick run to the lab, they found out that the 5 year old was a match to Matt.

Matt was shocked when he was told he had a little sister, and went to confront his mother who admitted to having another baby after she murdered her husband. She had found out after being sentenced to prison and knew that prison was no place to raise a baby. Matt was hurt that his mother never told him or his sister, so decided to visit the young girl to know her. With him being a practical stranger to the young girl, he brought Kelly with him, who had been visiting the young girl on his own time.

"Kelly." The young girl shouted in delight, running over to the firefighter. "Hey, kid, how are you?" Kelly smiled, squatting down to allow y/n to run into his arms before picking her up, her legs wrapping around her waist as she perched on his front. She giggled before seeing the stranger who was standing beside him, shying into Kelly's shoulder slightly. "Y/n, this is Matt, he works with me." Kelly introduced Matt to the young girl and Matt smiled softly at the girl, "Matt, this is y/n." "Hi there." Matt smiled, waving slightly at the girl. "Y/n, Matt needs to talk to you about something important okay?" Kelly stated, looking down at the girl who kept her head on his shoulder. Y/n nodded and moved as Kelly sat down on her temporary bed before sitting on his lap, and Matt crouched in front of them. "Y/n I know you don't know me but I am your brother. My aunt, the woman who you believed is your mommy, took you in after you were born. I didn't know about you until now. And if it's okay, I would like to take you in and care for you." Matt tried to not overwhelm the 5 year old as she looked at him with confusion. "I have a brother?" Y/n asked innocently, looking at Matt before moving her head up to look at Kelly. "Yeah, and Matt wants you to go home with him. Are you okay with that?" Kelly spoke, nodding his head. "Will I see you again?" She whimpered, tears building in her eyes. "Sure will Kid. Can't get rid of me that easily." Kelly joked, poking her side so she would giggle. "You can see him whenever you like. And you can meet the rest of firehouse if you like." Matt explained, wanting the girl to be comfortable around him.

And with that, y/n moved in with her brother. It was rocky at first, with y/n being so shy around him and avoiding him whenever Kelly was around. Kelly had signed on as her second guardian, but slowly she warmed up to her brother and Casey quickly grew into the parenting roll. With the help of firehouse 51, the lieutenant managed to raise the young girl into the young woman she was today, though Casey and y/n’s relationship neve grew quite as close as Kelly and her, but Casey wasn’t okay with that as he knew Kelly would always watch out for the girl.

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Kelly leaned against squads truck, watching for a certain 17 year old to come walking in with her brother. It was a weekend, and with Casey’s 24hr shift, the girl often came to hang out with the firehouse squad so she wasn’t alone all day. It wasn’t uncommon for y/n to wind up falling asleep in Kelly or Caseys office, but ultimately Casey allowed her the freedom to stay at their apartment on her own at night, provided she texted him when she arrived home. Generally the morning before their shift y/n would text Kelly, but having not heard from the Casey girl, Kelly was anxious to see her. Yet his attention was drawn to the truck that pulled up across from the road, only one head in view.

“Where’s y/n Casey?” Kelly called out to the Lieutenant as he walked across the road. “She’s not been home. Stayed with friends last night.” Casey stated, holding the strap of his bag over his shoulder. “You not collect her on the way? I haven’t heard from her all morning.” Kelly asked, crossing his arms over his chest as Casey stopped in front of him. “Geez Kelly, relax. She’ll be here soon. You worry too much.” Casey chuckled lightly as he hit Kelly’s shoulder in a joking way. "Well it isn’t like her to not text.” Kelly defended himself. “I appreciate your concern for her, but trust me, she’s fine. Time gets away from her when she’s with friends.” Casey smiled, placing a hand on Kelly’s shoulder before looking up as the bell went off before the two rushed off.

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The call had winded up with a bad outcome. An abandoned house where teens had parties had winded up catching on fire, and there had been multiple casualties, three had been found charred, with 8 winding up in hospital with serious injuries. Intelligence were treating this as a party gone wrong, with evidence of multiple flammable options being found after examining the scene. Each firefighter hung their heads as they arrived back to 51, and Boden called a meeting to check up on everyone.

Kelly and Casey opted to head outside to smoke a cigar after the case. It was midday when they were sitting on top of firehouse 51, and Kelly looked down the street to see a figure slowly walking towards them, arms folded as they hunched over themselves. Y/n was yet to turn up, so Kelly stood up, hoping to see y/n’s face. He hit Caseys chest when she recognized the girl, before moving to get down from the roof, meeting y/n halfway.

“Y/n where the hell were you?” Casey snapped before Kelly had a chance to open his mouth. “With friends.” Y/n muttered, avoiding the two men’s vision. “That was last night. You told me you’d be here by the time shift starts. Yet you rock up after lunch, what’s up with that?” Casey spoke harshly, and Kelly glared at him. Casey please.” The young girl pleaded, moving around them to head into the house. “No y/n, where were you?” Casey pushed, grabbing y/n’s arm harshly. “Hey, Casey, stop.” Kelly interfered when he seen y/n flinch away from her brother. “Get off me.” Y/n pleaded, pulling her arm away from her brother. “No, y/n, tell me where you were.” “I wasn’t at friends last night.” Y/n muttered, causing Kelly and Casey to look at her. “I’m sorry?” Casey questioned with a raised eyebrow. Y/n looked at Kelly slightly, and his eyes softened as he seen her broken sight. “Kelly, leave us be while I talk to my sister.” Casey stated to his fellow firefighter who took a glance between the siblings before leaning to Casey. “Go easy, listen to her before snapping.” Kelly warned Casey before moving to y/n, wrapping an arm over her shoulders and kissing her head before leaving the siblings be. “Kelly.” Y/n whispered. “My office y/n.” Casey spoke harshly, stepping out of the way for y/n to go first.

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“You gonna tell me where you were?” Casey asked his sister once he closed the door. “I dunno if I can.” Y/n muttered, causing Casey to sigh and rub his forehead. “Y/n I am tired okay. We’ve had a bad case and I am not in the mood for cat and mouse. SO just tell me where you are alright. It’s that easy.” Casey stated harshly, swinging his arm out, causing y/n to flinch. “no.” Y/n whimpered, flinching back at her brothers harsh movements. “Enough of the flinching. Where were you?” Casey snapped, rolling his eyes at his sisters antics. “Stop.” Y/n begged, tears welling up in her eyes. “I was kidnapped.” Y/n muttered, yet Casey heard it. “Don’t lie to me.” Casey snapped. “I’m not.” Y/n cried. “The truth y/n.” “I was kidnapped, I was raped Why won’t you believe me?” Y/n cried out, covering her face with her hands. “Cause if you were kidnapped, you wouldn’t be here.” Casey explained, moving closer to his sister. “Matt please..” Y/n begged, crying harder. “Get out of my sight. Come back when you choose to tell the truth instead of some sick lies.” Casey spoke, opening the door to his office. “I’m telling the truth.” “Do you have any idea how many people go through what your insinuating y/n. I can’t believe you would make that up.” Casey spoke abruptly, causing y/n to look down in tears. Casey please.” Y/n begged, wanting her brother. “Now y/n.” Casey finished, pointing out the door for y/n to leave.

Y/n hung her head as she walked out of the office, ignoring the looks of Cruz and Hermann as they walked by Casey’s office.

Believe Me Masterlist

Info: Y/n Casey had been gone for a night and no one knows where she was. But when she returns in bad shape and her brother has a bad rescue, no one believes her when she tries to tell them the truth, apart from Severide who promised to always be there for the 14 year old. Inspiration from believe me

Relationship: Kelly Severide x Platonic Casey reader

Warnings: brief mention of rape, kidnapping

Coming November

part series

Caught in the middle (3/3)

Info: During Casey and Voight's falling out Voight goes for the one person Casey cares about the most, his 16 year old sister y/n.

Y/n laying on couch, watching telly as 51 on call. It was after lunch and after studying all day, she was beginning to grow tired. She was about to fall asleep when voices were heard. Y/n looked up in confusion when Antonio appeared by the door. He nods at her and stops in front of her.

"Is Casey here?" he asked her, nodding his head in greeting. "On a call" She replied, shrugging. "Alright, mind if I wait with you." He asked, pointing to the seat beside her. "Not really." She shook her head, moving her feet for him to sit down.

The two sit in silence as they wait for the crew to come back. Y/n made a sound from her mouth before turning slightly to look at Antonio as his phone went off As he looked at it, he excused himself before getting up, moving towards the exit. Y/n continued watching telly before looking up when the sound of trucks moving in is heard. Smiling, she get's up and moves towards the door which opens to the parking area, running over to Casey to pull him into a hug, jumping slightly to reach him. Casey chuckles and kisses her temple as he held her close to him before placing her back down.

"How was the rescue" Y/n asked, leaning her head on Casey's shoulder. "Everyone saved so a good rescue." Casey nodded as he wrapped his arm over y/ns shoulder gently. "Antonio's here, I think he's got stuff on Voight." Y/n stated causing Casey to nod as he looked ahead. "Where is he?" "He took a call but probably back in the canteen."

Casey opens door and let's y/n in before following her. Y/n smiled at the firefighters and paramedics before moving to sit beside Mouch on the couch. She turned her head as the sound of the back door opened, before looking at Casey when she seen it was Antonio returning. Casey noded at him as firehouse 51 watches on.

"Casey, we've got a lead on Voight. Someone's willing to be wired so we can hear him confess." Antonio stated causing everyone to sigh in relief. "Well that's great we can catch him in the act." Hermann stated causing everyone to nod in agreement. "Antonio, what's wrong?" Gabby asked, noticing her brothers hesitance to continue. "We've got someone to help us. But he was asked by Voight to do something and he'll only meet when the guy get's what he wants done." "And what's that?" Casey asked, throwing his arms up slightly. "Voight want's him to bring Y/n, scare her a bit. He knows that she's one of your weaknesses and he's willing to use her against you to get you to back down from your statement." Antonio stated, moving back slightly when Matt moved closer. "Excuse me?" Mat asked, hoping he didn't hear right. "Voight want's to use y/n against you." Antonio repeated. "Absolutely not." "Matt...." Y/n started moving closer to her brother. "No, I am not using my sister as leverage to catch Voight out. There has to be another way." Matt stated, moving around slightly as he spoke angrily. "Believe me when I say I don't want to and if there was any other way I wouldn't of suggested it. But if you want this over then we have to do this Matt." Antonio stated, moving towards Matt slightly. "Matt, it's okay. Police will have them surrounded in no time, they can't do anything. I'll be fine. Quick job." Y/n stated, wanting to help her brother. "No, y/n, I can't let you do that." Matt stated, placing a hand on y/ns arm. "It's the only way to end this." Y/n replied with a knowing look. "And there is absolutely no other way?" Boden asked again, causing Matt to look at Antonio over y/ns shoulder. "Believe me if there was I wouldn't even have suggested this." Antonio said in sympathy. "Can I be in the van while this exchange happens?" Matt asked, trying to compromise. "If you swear not to interfere while it happens, no matter what happens." "So long as no one touches my sister then yes." "Let's hope it doesn't come to that." Antonio nodded before looking at the younger Casey, "Y/n, come to the corner shop down tonight and you will meet the guy who will bring you to Voight. Matt, you meet us at the station and we will drive down to the alley way across from the bridge where they will meet. Got it?" Antonio instructed, pointing at each of the siblings when he spoke to them. "Got it." Matt spoke, wrapping an arm around y/n as she snuggled into his side. "See you then." Antonio stated before leaving the canteen with Gabby following him.

Y/n looked up at Matt as he stared ahead of him for a minute before looking down at his sister with a slight smile. Sighing softly he brought her closer to him before kissing her head.

"It'll be ok. If you feel uneasy at any time scratch the mike and I'll come get you out of there, got it." Matt stated, pointing at his sister softly as they moved to the area where there lunch lay. "Got it." Y/n smiled, squeezing Matt gently before moving to grab some food before sitting beside Kelly who wrapped an arm around her shoulders.

Matt watched his sister for a brief moment before moving slightly when a hand tapped his shoulder. He turned and watched as Hermann moved to lean against the counter.

"How you feeling about all this?" Hermann asked, knowing that Matt wasn't going to be fond of letting his sister be leverage to gain information. "I don't like it Hermann, I didn't want her involved. She wouldn't be only for Voight dragging her into it." Matt stated, taking a drink from his cup of coffee. "Yeah, I get that. I don't think any of us are particularly fond of her being brought into it. Trust me if I could I would march down to his office and give him a piece of my mind." Hermann stated, bringing a finger down onto the counter as he spoke. "Yeah, I've tried that but here we are." Matt stated, turning to watch as y/n laughed slightly at something Cruz and Otis were arguing over. "Keep your head up Matt, after this she'll be safe from him. It'll work, just have faith." Hermann stated, hitting Matt's arm gently before moving away towards the table where his co-workers were messing. "Yeah, the faith." Matt sighed before grabbing his food and cup before heading towards his office.

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"Alright so you just stand there while we get the information from Voight. As soon as we get the confession, we'll be there straight away. Alright?" Antonio explained as he checked y/n over to ensure no wires were seen. "If you need me just yell and I'll come get you." Matt assured her with a nod of his head. "Don't yell it will only draw attention, just bring Matt's name into conversation. He won't notice the difference." Antonio stated, eyeing Matt to ensure Matt understood not to just bolt out in the middle of interrogation." "Alright." Y/n nodded before facing the guy who was going to bring her to Voight.

The man nodded and headed towards a black car. Y/n turned to Matt and he smiled softly before pulling her into a hug. Pulling away after a kiss to the head, y/n nodded at her brother before getting into the car. The car was silent until they reached under the bridge. The man looked around before getting out, moving around to the passengers seat before forcing y/n out of the car.

"Go with it, there here." The man muttered to her before dragging her away from the car. "Whatever happens don't let them know your wired." Antonio's voice reminded them over the earpiece.

Y/n nodded and looked ahead as Voight and another man came into view. She gasped as he gave her a hard look before turning to the guy who had a grip on her bicep.

"Hard to get her?" The man who came with Voight asked. "Easy to get her when the guys leave for a fire." The guy beside her replied. Voight nodded. "I heard you needed help to get the Casey boy to withdraw the statement from your boy." "Yeah, that's right." Voight replied, glancing at y/n who shuddered slightly from the cold.

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Matt watched the computer, his leg bouncing in anticipation. She watched as his sister looked scared with a sad look. He bit his lip as he fought his instinct to run and help her.

"I heard you needed help to get the Casey boy to withdraw the statement from your boy." The guy helping the cops stated. "Yea that's right." Voight replied. Almost got him." Antonio stated with a slight smirk, "Ask him what he needs you to do?" He stated into the ear piece. "What do you want me to do?" The mean recited back to Voight. "I need you to break him down a bit, I don't care how once it's done. Maybe bring his dear sister into the mix." Voight stated, looking at Y/n slightly as she gulped. "We got him let's go." Antonio called out and they moved to action.

Matt jumped out of the van and glanced Voight's way as he got surrounded by police cars. The guy who helped and the one with Voight made a run for it when sirens were heard and y/ stood there, watching the scene take place.

"Y/n." Casey called out, running towards her as she turned to face him. "Matt." Y/n replied in relief as he brought her into a hug, her arms circling around his waist. "It's okay, it's over now." He stated, kissing her forehead gently as she turned her head from his chest to watch Voight be put into a car. "Well done y/n, thanks for your help. Now that he was caught planning something against your brother we can rightly put him behind bars." Antonio explained, nodding at the siblings as they separated. "Thanks Antonio." Matt smiled, shaking his hands before watching the detective leave. "Come on, let's head home." Can we get dinner out tonight." Y/n asked with a smile. "I suppose we can." Matt nodded before laughing as they headed down the street to get to his truck.

Caught in the middle (2/3)

Info: During Casey and Voight's falling out Voight goes for the one person Casey cares about the most, his 16 year old sister y/n.

It had been a week since the incident between Voight trying to talk to Y/n. Casey had been overprotective since then, dropping her to school and having someone collect her every day. The crew at firehouse 51 always made sure someone was with her to prevent anything bad happening to her.

Casey sighed as he pulled up to the school, turning to y/n as she took her seat belt off.

"Alright, I'll pick you up straight after school. I'll still be on call so no hanging around." Casey pointed at her causing y/n to sigh and roll her eyes. "Can't I just walk to firehouse, it's not that far to walk." She asked causing Casey to shake his head in disagreement. "I don't want you on your own after Voight. Don't want to take any chances." "Come on Case, I'll be careful." She persisted. "Y/n no alright, I'll pick you up here after school, no later okay. Now please don't fight with me on this." Casey stated, giving y/n a warning look. "Uggh fine." Y/n groaned, grabbing her bag from the back. "Alright I love you." Casey stated with a smile as y/n kissed his cheek. "Yeah love you too." Y/n muttered as she jumped out of the truck and closed the door.

Casey watched as his sister walked up the steps to the school before leaving when she was out of sight.

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Casey sat at the table in the firehouse canteen, eating lunch while talking to Hermann.

"So how's all with y/n?" Hermann asked, gaining the rest of firehouses attention. "She's good you know. Getting a little annoyed on having someone collect her and being here all the time. She wanted to walk home but I can't chance it with what's going on." "Yeah, I get that. She want's her independence but you've got to protect her as well." Hermann explained. "Exactly. I don't like not letting her do her own thing but God I don't know what I would do without her in my life." Casey shook his head, looking down slightly. "Your a good brother Casey." Hermann stated, pointing at him. "Thanks Hermann, I appreciate it." Casey slapped his hand on Hermann's shoulder gently.

The crew looked up as the alarm went off, alerting them of a fire.

"Truck 81, Squad 3, Ambulance 61, school fire, Chicago high." The voice announced.

"Isn't that y/n's school?" Kelly stated as they stood up. "Yeah." Casey sighed in concern as he rushed to the fire truck, everyone else following suit.

Casey's leg bounced impatiently as Cruz turned on the sirens, rushing to get to the school. Mouch and Hermann glanced at each other in concern as they watched their lieutenant worry over his sister. They rushed out of the truck as they came to the scene, Squad 3 and ambulance pulling up behind them as Chief Boden rushed passed them in his car.

"Alright, guys masks on. Cruz, Otis and Mouch take lower end, Mills and Hermann, your with me." Casey stated as he took his helmet off to put the mask on. "Got it lieutenant." Hermann nodded before they headed into the fire, Squad following them in.

Boden scanned the area before seeing the crowds of students to the far side. He turned to his side as a woman in a suit rushed towards him.

"I'm the principal of the school, We think the fires started in the lab." She announced, watching as the firemen brought out students from the building. "What would be the cause?" Boden asked. "I dunno, it's a science lab so got only knows." She stated as Hermann walked towards him. "Everyone from the bottom two floors have been brought out, Casey and Kelly are checking the top floor." Hermann stated to Boden.

"There's still someone in there." The principal stated, coming back over to the chief firefighter. "What's their name?" Boden asked. "I dunno, a girl..............." The principal stuttered. "Y/n Casey." A student called out, causing Hermann and Boden to side eye each other in concern. "That smokes not looking too good." Mouch stated, pointing at the smoke that was slowly turning black.

"Casey, Kelly, update on location." Boden called out in his radio, turning to face the fire. "Nearly finished on top floor, doesn't seem to be anyone here so should be out shortly." Kelly's voice came through to them. "Is y/n out there?" Casey asked, his voice full of concern causing Hermann to raise his eye brows warily at Boden who looked at him before sighing. "She's the only student not here." Boden replied, unsure of how his two firemen would react.

Kelly looked at Casey as he threw his head up in frustration when their chief stated that his sister wasn't out. The squads lieutenant sighed and went to answer back into the radio.

"We're going to scan the building again, maybe we missed her." Kelly stated, glancing at Casey as he headed into a room, calling for his sister. "Kelly that smokes not looking too great." Boden warned them. "I'm not leaving without her." Casey stated to Kelly, heading into a new room. "Yeah Chief we got it." Kelly replied, sighing before following Casey.

Boden sighed and looked at rest of firehouse 51. Shay and Dawson only glanced his way before aiding another student who had minor burns. Mouch and Hermann rolled their heads to the side as they looked at each other before looking back at the school, monitoring the smoke.

"Y/n!!" Casey called out, kicking a door down as he entered the last room on the top floor. "Casey, she mustn't be here, we should check down below." Kelly called out, appearing at the doorway. "You check middle, I'll check bottom." Casey shouted back before they headed down. They turned around as debree fell onto the stairs. "We need to work fast, there's no telling how long we have left." Kelly called out. "We need to find her." Casey stated before rushing down towards the bottom floor.

"Casey Kelly, we need you out of there now." Boden called out, not liking having to say it. "Chief we haven't found her." Kelly stated in disagreement. "I'm sorry Kelly but that place is about to blow so you need to leave now." Boden stated with urgency.

Kelly sighed but headed towards the stairs, scanning the rooms briefly in hopes of seeing the young Casey. Reaching the bottom of the stairs he seen Casey rushing towards the back of the hall of the bottom floor.

"Casey, we've got to go." Kelly stated, rushing towards him and grabbing his arm. "I need to find her Kelly." Casey said with urgency, not looking at him as he kicked a chair out of the way. "This place is about to go up so we have to go." Kelly stated with urgency. "Y/n's in here somewhere." Casey replied. "I'm sorry Casey." Kelly stated, eyes watering as he started pushing Casey out of the burning building as it started collapsing behind them.

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The two lieutenants got out of the door before throwing themselves onto the ground as the fire blew up. Hermann and Capp rushed towards them and helped them up as Otis, Cruz and Mills began letting the fire out. Casey pushed them away as he turned towards Kelly as tears built in his eyes.

"The hell Severide." He shouted, pushing Kelly back as the squad leader allowed him to. "Casey!!" Boden warned as he came towards them, Hermann and Mouch holding Casey back from Severide. "You seen there Casey, the place would of collapsed on us if we were in there any longer." Kelly shouted at him, his own tears building as the whole of firehouse 51 watched on with sadness.

Casey glanced at his firehouse co-workers, each looking at him with sadness and worry at the possibility that the light of firehouse 51 being gone.

"Maybe she got out without anyone knowing, or maybe someone didn't realize it was her they got out." Mills stated, with slight hope.

Casey closed his eyes, taking a deep breath before rushing over to the ambulance as Shay and Dawson wheeled a student into the ambulance.

"Dawson, have you seen y/n?" He asked with hope. "No I'm sorry, is she not here?" Dawson asked with worry. "Damn it." Casey muttered, turning to watch people hurry around the fire scene.

He turned his attention to a car pulling up to the scene, glaring at it when he seen who it was. Voight looked at him as he got out of the car before turning his attention to Boden as he walked towards the detective.

"Voight." Chief nodded as the crew turned to watch them. "Just here for observation, school fires, wanna make sure it wasn't achieved on purpose." Voight stated, nodding at Casey who glared at him. "Unknown yet, started at lab area so probably a case of unfortunate events." Kelly stated as he moved closer to Casey to make sure he doesn't do anything drastic. "Your sister go here?" Voight asked Casey as he pointed at the burned school, causing Casey to go for him. "Hey easy man." Kelly called out, grabbing Casey as Boden put his hand up in warning. "I think it's time that you left Voight." Boden stated, giving a hard look at the detective who nodded before leaving.

"Any luck seeing her?" Boden asked, turning to Casey once the detective was out of sight. "No, none of the ambulances have seen her." Casey, stated, shaking his head in concern. "We've evaluated the building and there's no sign of anyone in there." Capp stated as he walked towards Kelly, Casey and Boden. "That's fortunate." Mouch stated, relief evident in his voice. "Yeah but we still don't know where she is." Hermann stated causing the rest to nod in agreement. "Come with me to the hospital, make sure she wasn't brought there without you knowing." Boden stated to Casey before turning to the rest, "The rest of you head back to the department, we'll let you know if she's there." He ordered the before heading to his car, Casey following as Kelly hit his back in reassurance.

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Casey rubs his head in concern as Boden rushes through traffic, sirens blaring. He turns into the hospital parking area and Casey jumps out before the car stops, heading towards the nurses desk in the emergency area as he ignored the receptionist. He slammed his hands onto the desk, scaring Maggie as she looked up from paperwork.

"Casey......." Maggie started. "Was my sister brought here." He asked desperately, interrupting the head nurse. "Casey I don't....." "Y/n Casey, was she brought in here from the school fire." Casey asked, looking at Maggie with desperation to find his sister. Maggie looked at Casey before turning to the computer closest to her, checking for y/n's name on the system. There's no y/n Casey here, are you sure she was brought in." Maggie asked but Casey ignored her as he moved back, hands on his head as he rubbed his face before rushing out.

"She's not there." Casey stated to Boden as he got back into the chiefs car. "Maybe she made her way back to the firehouse, don't lose hope yet Casey." Boden stated before rushing back towards the firehouse.

"Hi, this is y/n, sorry I can't answer right now, call back later." Y/ns cheery voice called through the phone, causing tears to build in Casey's eyes for fear of losing his baby sister.

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Casey paced the floor of his office as he tried calling his sister once again. It had been two hours since they left the scene of the school fire and Casey was beyond worried. No one had heard anything from her and everyone was starting to fear for the young girls life. She hadn't been found in the building after the fire was extinguished which means that she could be anywhere on her own.

Sighing in frustration, Casey threw his phone onto the desk as he sits down on his chair, face in his hands. He takes a deep breath as he tries to calm himself down as he hears footsteps coming towards him. Looking up he seen Dawson knocking on the door.

"Hey, any luck?" She asked. "No, haven't heard anything." Casey stated with a sigh, rubbing a hand down his face. "Antonios here with news on the fire." She stated, looking at Casey as he stood up. "Great." He replied, making his way to the canteen where the rest of firehouse 51 had gathered.

"Alright, what have we got?" Boden asked, glancing at Casey as he and Kelly moved to his side. "The fire was started on purpose. According to the principal it had started in the lab area so it was probably done t try distract the attention as an experiment gone wrong." Antonio stated. "Do you know who could of caused it?" Kelly asked, his arms crossed. "Could be student, teacher, someone who possibly got into the school to start it. We're currently working on finding who done it but no one say anything out of the ordinary." Antonio shrugged. "Right well if you need any assistance with this case let us know." Boden stated, crossing his arms as he stepped back. "Course." Antonio nodded before moving away from the group of firefighters. "I'll see you out." Gabby smiled at his brother before walking off with him.

"Hey Casey, any word on your sister?" Hermann asked, worry laced on his face as he looked at his lieutenant. "No nothing yet but still trying." Casey replied with a sigh as everyone looked at him. "God, it's been two hours." Cruz muttered to Otis as the two looked at each other. "I hope she's ok." Otis replied with a nod at Cruz. "Maybe we could check with Antonio, he might of heard of something talking to the school." Kelly stated, looking at Boden and Kelly. "Good idea." Boden pointed at Kelly before turning as Casey walked off to where the Dawson siblings left.

"Antonio." Casey called out, running to catch up with the detective and his sister. "Casey." Antonio nodded at him, leaving the conversation he was having with Gabby. "Hey have you heard of anything about a missing girl." Casey asked, pointing slightly at the detective. "Why?" Antonio asked in confusion. "Casey's sister y/n hasn't been in contact with him since the fire and she goes to that school." Dawson explained to her brother causing the detective to nod. "There hasn't been anything on any missing person from the fire, no said anything. Are you sure no one has heard from her? Maybe she left early or something." Antonio explained the possible scenarios. "No, my sister isn't like that. She likes school so wouldn't just up and leave. She hasn't been in contact with anyone and I'm worried as there wasn't anyone found after the assessment of the building." Casey shook his head. "Have you got a picture of her, I can look into it and see if any kid we questioned about the incident matches her." "Yeah, there's one in my office." Casey nodded, signaling for the detective to follow him. "Here." He stated, grabbing a picture of y/n smiling with a milkshake beside her from his pin board, handing it to Antonio. "Great, I'll let you know what I find." Antonio stated before leaving. "Thanks Antonio." Dawson smiled, leaning against the door as his brother left.

Casey sighed and moved to his chair, sitting on it as he sighed deeply. Gabby sighed as the firefighter ran his hands over his face in frustration. She moved closer and placed a hand on his shoulder.

"Don't worry, Antonio will find something out." Dawson assured Casey, rubbing his back gently as he bounced his leg with worry. "I just want her back here, safe." Casey stated, causing Dawson to sigh. "Yah, I think we all do." Dawson stated with a look of worry for the young girl.

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Kelly looked up from the squad table as footsteps were heard rushing into the firehouse. Seeing Hailey, he got up and came towards her.

"Kelly where's ...." "Casey's in his office." Kelly stated, interrupting the out of breath doctor.

Hailey nodded and rushed towards her fiancés office. Casey looked up as he heard the footsteps and stands up when he sees who it is.

"I'll leave you two alone." Dawson stated before leaving, smiling softly at Hailey before closing the door.

"Maggie told me you were looking for y/n, is she here, is she safe, is she ok?" Hailey asked as she hugged Casey. "Haven't heard from her, I've been trying to contact her but it keeps going to voicemail. Antonio is looking for her now." Casey explained, tears filling his eyes for the first time since the incident. "Hey Matt, look at me, she'll be okay." Hailey tries to reassure her fiancé, cupping his face in her hands. "I just, I can't bare the fact that I don't know where she is, she's my baby sister Hails, I've raised her since she was one, I can't, I need to know she's okay, I need to know where she is." Casey cries, sitting on his bed with tears flowing down his cheeks. "Matt, listen to me, she will be found, it'll be okay, she'll soon be back here with you okay." Hailey tried to comfort him as he rubbed his arm gently. "I just want her back Hail's, I can't bare the fact that she could be anywhere, maybe unconscious...." "Don't think like that" Hailey interrupted him, putting a hand on his cheek to force him to look at her. She kissed him gently before before hugging him again as he cries. "I need her back Hails." He cried, clinging to her. "I know, I know." She stated, running her hand through his hair, trying to calm him down.

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Y/n groaned in pain as she leaned against a wall in an alley. Burns and cuts were littered all over her from the fire and her head was pounding. The guy who had been around her since she woke up gripped her arms and forced her to stand up.

"What's wrong sweetheart, scared I'll hurt you." He jeered in her face. "I think that's enough, no need to hurt her." A voice called out. Y/n glanced to the side to see a figure coming close to the man who had been around her as he walked away. " Here." The same man that spoke before stated, handing him something.

The guy who had been at her glanced towards y/n before nodding at the new man before walking away. Y/n sat up weakly, rubbing her head before looking up when she heard someone coming towards her. She moved back, her back hitting the wall as the man crouched in front of her.

"Oh don't worry y/n, I'm not going to hurt you. I think you've suffered enough now." The man spoke causing y/n to look up at him, recognizing him as Voight. "What?" Y/n asked in confusion. "Just tell your brother something for me, if he withdraws the claim against my son then all of this will go away." Voight stated, bringing his hands up to y/ns shoulders. "Why are you doing this?" Y/n asked, gasping in pain. "I really didn't want to bring you into this but my sons a good boy and your brother might ruin his chances of having a good life." He stated causing y/ to nod before scrunching her face in pain. "Let's get you back to the firehouse, I'm sure there worried about you." Voight stated before offering y/n his hand as he stood up.

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Firehouse 51 sat around the canteen, not speaking as they worried over the youngest Casey. Casey sighed as he tried calling his sister again, all but throwing his phone down when it went through to voicemail once again. Hailey had gone back to work with promises of contacting her fiancé if y/n turned up at the hospital. He leaned his head against the wall as Kelly sat across from him.

"Still nothing?" He asked, looking at his friend. "No, I'm worried man, she always answers my calls, or at least texts if she can't answer, no matter what she's doing." Casey stated, leaning on the table via his arms. "God I hope she's ok." Kelly stated, concerned for his youngest friend who he thought of as a sister.

"Casey!!! We need you." Gabby shouted from the parking lot as Mills runs into the cafeteria where most of the crew had looked up at the sound. "It's y/n." He stated, pointing behind him as Casey rushed towards the parking lot, the crew not too far behind.

"Y/n." Casey shouted in relief when he seen his sister, Dawson close by her. He ran towards where Gabby kneeled beside his sister, y/n lying on the ground tiredly. "She has burns and cuts all over her but they don't seem severe." Gabby stated, glancing at Casey as he stopped beside her, placing a hand on his sister cheek as he watched her with concern. "Bring her here." Shay shouted from the ambulance as he opened the back doors.

Casey brought one arm under his sisters back, the other going under her knees before lifting her up bridal style, heading towards the ambulance with Gabby following close behind.

"Casey." Y/n called weakly. "Hey, I'm here, your okay, your safe." He reassured her, kissing her head gently as they reached the ambulance.

Casey placed y/n onto the stretcher before watching from the doors as Shay and Dawson examined her. Kelly moved closer to Casey, placing a hand on his shoulder as they watched the paramedics place an oxygen mask over her mouth and nose. The rest of firehouse 51 gathered around the ambulance, watching on with concern for the young girl.

"Her burns don't look severe, cut's aren't too deep, y/n sweetheart are you hurt anywhere." Shay asked as she listened to y/ns breathing. "No, just tired. Where's Casey?" Y/n asked, rapidly looking for her brother. "He's just at the doors sweetie, don't move too much alright. I'm just going to patch you up." Gaby assured the young girl, pointing to Casey as Shay jumped down from the ambulance. "I don't think she's done any internal damage, her burns and cuts aren't too bad so they will clear up, she'll be fine after some rest but if she does show anything out of the ordinary we can bring her to med." Shay explained to Casey as Dawson treated y/ns cuts and burns.

Casey nods and moved onto the ambulance after Dawson got down. Bent down slightly, he moved towards y/n who reached up to her brother when she seen him. Smiling, he removed the mask from his sisters face before lifting her up into his arms. Kelly patted y/ns head as he helped Casey down before they left to his office.

"Come on little one, you can rest in my office." Casey smiled, kissing y/ns head as she clung to his neck. "I'm sorry for worrying you." Y/n stated tiredly, snuggling into her brothers chest as he opened the door with his foot. "Hey, don't worry about that, I'm just glad your okay. I was afraid something had happened to you." Casey reassured her as he lay y/n on his bed before crouching down near her head as she turned to face him "You okay?" He asked, petting her hair gently. "Yeah, you?" She asked with a smile. "I am now that your here." He stated, leaning down to kiss her temple "What happened?" He asked in concern. "I was in english class when the fire alarm went off, we made our way to the fire exit but I got trapped so I made my way to a empty classroom, closed the door and looked for water to make a face cover as you had told me to do countless of times. I think I breathed in smoke or something as I must of passed out because next thing I know I was in an alley with a guy pushing me against a wall." She stated causing Casey to look at her with worry as he grabbed her arm and rubbed it gently "Voight came after, gave him something, told him he needed me not harmed and then he came over to me" Y/n stopped as Casey's face hardened. "He didn't do anything to you, did he" Casey asked with wariness in his voice. "No he just told me to tell you that if you wanted it to stop, you just had to withdraw the claim" Y/n explained tiredly "I'm tired'" She stated, yawning gently at the end, "you get some sleep, I'll be here when you wake up unless called out. I just have to talk to Boden about something" Casey stated, kissing y/ns head before getting up from his crouched position. "I love you Casey." Y/n muttered as she closed her eyes. "I love you too." Casey smiled, relieved to have her back close to him.

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Casey walked into the canteen to see majority of the crew sitting around, chatting away. The air was more at ease now that y/n was back safe. Kelly looked towards Casey and nodded as he nodded for him to follow, before moving to Hermann and Mouch, asking them to follow them to Bodens office.

"Casey, how is y/n?" Boden asked, seeing him walk in along with Kelly, Hermann and Mouch. "Yeah she's resting in my office." Casey nodded, closing the door behind Mouch. "Did she anything of what happened?" Kelly asked, watching as Casey stiffened. "Yeah, it's not good." Casey stated, sitting on the chair in front of Bodens desk, Mouch taking the other one. "Well, what happened?" Hermann asked. She said she got trapped during the fire so went into a room and done water on a piece of cloth but must of inhaled smoke or something as net thing she knew she was in an alley wit ha guy pushing her against a wall." Casey stated causing the men to inhale a sharp breath. "Did he?" Mouch asked, unable to finish his question. "She said no one hurt her but Voight did come up them, gave the man money and then brought her here. Said if I wanted this to stop then I had to withdraw the claim against his son." "So Voight organized this?" Boden asked fro clarification. "From what y/n said yes." Casey nodded, holding back his anger. "Jesus why would Voight do that to a young girl like y/n" Hermann stated in shock, leaning on the back of Casey's chair. "Revenge." Kelly stated bluntly, glaring in front of him. "Casey it's your choice here, we can have y/n here at all times till this blows over" Boden stated. "I'm not withdrawing that claim" Casey stated with determination. "Then y/n stays here till somethings sorted. Have Antonio come here and tell him what happened, Voight's gone for the wrong person this time." Boden stated causing the rest to nod "Thanks chief" Casey nodded in appreciation for the guys. "She's family, and no one in out family gets hurt" Mouch stated as the rest nodded in agreement before the alarm went off for them to get to work.

Caught in the middle

Info: During Casey and Voight's falling out Voight goes for the one person Casey cares about the most, his 16 year old sister y/n.

Part 1

Part 2

Part 3

Caught in the middle (1/3)

Info: During Casey and Voight's falling out Voight goes for the one person Casey cares about the most, his 16 year old sister y/n.

Y/n Casey was the sister of Matthew Casey and had been living with him for most of her life. She was only one when her mother went to prison and Casey, although he had just started his firefighting career, took it upon himself to look after his baby sister. Their sister Christie had barely been in her life due to the falling out of the older siblings, despite Casey trying to get Christie to be in their sisters life.

Upon being raised by her older brother, y/n was relatively close to firehouse 51. Kelly and Darden had been like her older brothers until the death of Darden. Since then, Kelly had tried to keep the relationship y/n and himself had but due to Kelly and Casey blaming each other for the death of their falling friend, Casey wasn't that fond of y/n being around Kelly and y/n didn't want to make Casey any more angry at Kelly then he already was so chose to spend as little time with Kelly as possible.

Having no parental figures in her life, Y/n looked up to Hermann, mouch and Boden as if they were her fathers. If Casey needed someone to watch out or y/n, he would often call upon one of the three to look out for her. In turn, if Hermann and Cindy wanted to go for a night out, y/n would often watch over the kids for them.

Shay and Dawson were like sisters to her. If she needed girly advice they would be the ones she would turn to. Due to living with Casey, it also meant that she got along with Hallie. No matter what the firehouse 51 had her back, and there was always someone who was there for her.

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"Y/n." Severide smiled from the squad table as y/n and Casey walked in. Y/n looked at Casey to see him glaring at Kelly before walking to his office. "Hi Kelly." Y/n waved before heading in the same direction of Casey.

Kelly looked around as he moved his chair back before getting up and following y/n away from the others.

"Hey, y/n, wait up." Kelly called out once they were out of side. Y/n sighed and stopped as she looked ahead at her brother as he went through some papers. "Look Kelly I don't think............" "You don't have to ignore me because of what's going on with me and Casey." Kelly stated as he stopped in front of her. "I'm not." She stated abruptly. "Are you sure, cause it sure seems like it." Kelly stated sarcastically, causing y/n to look down. "I just don't want things to be awkward, or to make anyone uncomfortable." "They won't if you don't let it." Y/n stared ahead in silence. "Just, come have lunch at squad table later yeah." He asked, hopeful.

Y/n went to respond only to be interrupted by the sound of the alarm going off.

"Truck 81, Squad 3, ambulance 61, house fire at west avenue." The dispatch called out.

Y/n stood still as the fire crew started rushing past her, ignoring as Kelly squeezed her shoulder before heading over to squad. Seeing a boy wearing a t-shirt which read 'candidate' she froze. She snapped out of it as Casey rushed passed her, turning back to give her a wink of assurance, to which she nodded and gave a weak smile. She watched as the ambulance and fire truck left the fire house, sirens blaring as they rushed down the street.

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Casey glanced back at the firehouse as his sister glanced down in the direction they left before sitting back in his chair. A piece of paper at the corner of the trucks window caught his eye, causing him to smile, remembering when 5 year old y/n ran proudly into the fire station after play school, showing off the drawings she made for each firehouse 51 vehicle. Hermann watched as Casey picked up the worn picture with a smile.

"How's y/n Casey?" Hermann asked, causing Casey to glance back at him as he pulled away from his thoughts. "Who's y/n?" Peter asked in confusion. "She's my little sister." Casey stated, placing the picture back at the corner. "The light of firehouse 51." Cruz joked causing everyone to laugh in agreement. "She's doing well Hermann, she hasn't had many nightmares in a while, and the ones she does have aren't as bad as they had been, which is good." Casey explained, speaking of the nightmares that his sister had since Darden's death. "That's great to hear Casey, really great." Hermann smiled with a nod of his head. "Alright guys, let's roll." Casey announced as they reached the house, getting ready to fight another blaze.

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Y/n sat at Casey's desk, pen in her mouth as she typed away on her laptop, studying for final exams of the school year. Rubbing her eyes, she threw her arms over her head to stretch them when a picture catches her eye, a picture of her, Casey, Kelly and Darden after the three boys had graduated. Y/n, who was 3 back then, was perched on Darden's waist as they all smiled. Smiling sadly, y/n stood up from her seat and ran a finger over the picture.

Standing in silence for a few minutes, y/n snapped out of her thoughts when she heard the sound of vehicles pulling into the firehouse. Throwing the pen that had been in her mouth onto the desk, she rushed out of her brothers office, towards the direction of the trucks.

Casey barely had time to step down from the truck before his siter jumped onto him. Stumbling back, Casey wraps his arms around his sister to prevent her from falling. He watched as the guys walked by them, smiling softly at the two siblings before heading into the cafeteria area, Mouch messing with y/ns hair gently as he passed. Keeping an arm around Y/n, Casey placed her back on her own two feet before closing the truck door, keeping an arm around his sisters waist. He placed a kiss on y/ns head gently as Kelly walked by, glancing their way.

"I'm ok." He stated after a few minutes holding onto y/n, rubbing her back gently. Y/n sighed and pulled away from her brother slowly, nodding as he tucks a piece of hair behind her ears. He keeps both his hands on her face as he bends slightly to retain eye contact with her. "I'm okay." He stated again, smiling at her causing y/n to smile.

Stepping back from each other, the siblings made their way to Casey's office, Casey's arm draped over y/ns shoulder. Y/n leaned into her brother as he glanced at her school work that lay on his desk, checking on what she was doing.

"What were you working on?" He asked, picking up some sheets that lay on the laptops keyboard. "English project." Y/n stated. "What's it about?" "Shakespeare's work." Y/n stated, giggling slightly as Casey threw the piece of paper down with a look of displeasure. "It's not that bad." "I beg to differ." Casey stated, moving away from y/n as she saved the work that she had on her laptop. "Come on let's get some lunch."

The duo headed into the canteen where the rest of firehouse 51 were grabbing their lunch. Y/n glanced towards the squad table where Kelly sat, and he smiled softly at her as she waved shyly before accepting the plate of lasagna Casey gave her. She sat at the corner of the aisle after grabbing some water, listening to the fire crew as they talked about the fire. She stopped eating when she seen Kelly standing up, walking towards the exit. He turned and nodded at her to follow him causing y/n to look at Casey before following him.

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Y/n crosses her arms over her body as she walks out of the firehouse, standing close to were Kelly was. He glanced her way as the two stood in silence.

"Look I know that Casey and I aren't on the best of terms right now, but I would really like it if we kept the relationship that we had." Kelly stated after a few minutes of them just standing quietly, turning to face her. Y/n didn't sat anything for a minute, instead turning to look in the direction of the firehouse. I just dont want it to be awkward. You and Casey aren't exactly talking and I feel like I'd be insulting him if I talked to you." Y/n stated, glancing at Kelly who watched her carefully. "It won't be if you don't let it." Kelly assured her, placing a hand on her shoulder, "I just want my little buddy back." He stated, trying to get her to at least smile, smiling himself when he seen a faint smile appear on her face as she tucked her chin into her chest. "I missed you." He said, bending slightly to look into her eyes, causing her to smile up at him. "I guess I missed you too." Y/n smiled causing Kelly to smile as he stood up straight again.

Kelly moved closer and pulled y/n into a hug. Y/n sighed as she accepted the hug, wrapping her arms around his torso. She shivered with the cold, causing Kelly to pull back from her.

"You cold? Come on, we better head back in so you don't get sick." Kelly stated, moving towards the firehouse. "Actually, I think I'm going to stay out here for a bit." Y/n stated, looking over her shoulder at Kelly. "Here, have my jacket then, and don't stay out for too long." He warned her, taking off his jacket and helping her put it on. "Thanks." She smiled, allowing the cuffs of the jacket to fall over her hands, flapping them gently as she watched Kelly leave.

"Y/n Casey." A voice called out, causing y/n to turn around to see a man with grey hair looking at her as he leaned on a black car. "How do you know my name?" She asked, looking back at the firehouse with weariness. "The names Voight, Detective Voight." The man responded, moving away from his car as he spoke to her. "Can I help you with something?" She asked, stepping back as Voight moved closer to her. "Just a chat is all." Voight responded with a slight smile as he stopped in front of y/n.

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Boden walked out of the bathrooms, heading towards the canteen when he seen Y/n standing outside. Moving closer to the exit, his face hardened as he seen Voight talking to the young girl. Shaking his head he made his way into the canteen, walking over to Casey.

"Casey." He stated with a strong voice, causing Casey to look up at the chief in confusion. "Voight's at y/n."

Casey's eyes widened before jumping out of his seat, rushing towards the entrance with Boden close behind. Seeing Voight talking to his sister caused him anger as he walked towards the two, Boden staying at the exit to watch.

"Voight stay the hell away from her." Casey shouted, pointing at Voight as y/n glanced in her brothers direction in confusion. "Just a talk is all." Voight stated, opening his arms outwards. "Leave her alone Voight." Casey stated as he stopped beside y/n, pushing her back gently. Y/n looked back a the firehouse to see the rest of the department watching what was happening. "You know Casey, your sister here, she's quite smart." Voight stated, glancing at y/n who looked between the two men with confusion. "Don't you come near her again you hear me." Casey stated, moving closer to Voight who just smirked before leaving to his car, nodding at the firehouse as he opened his car door before leaving.

Casey wrapped an arm around y/n's shoulders as he watched Voight leave. Y/n watched the car turn the corner before facing her brother who placed his hands on her shoulders before looking her in the eye.

"You okay?" He asked, a look of concern on his face. "Yeah fine, he was just asking me if I had seen anything suspicious lately." Y/n responded, Casey nodding in relief at her answer. "He comes near you again, you let me know alright." Casey stated as he pushed a piece of hair behind her ear.

Y/n nods and Casey smiles, pulling her into a hug as he kissed her head. She smiled at him as they separated before Casey wrapped an arm around her shoulder, leading her to his office, ignoring the looks the rest of his co-workers gave them as they passed. The crew looked at Boden who just watched Casey bring his sister into his office before nodding, telling them all to just leave what happened in the firehouse.