Okay imagine this; Cassandra with the same exact upbringing but the family somehow doesn’t know. She learned to talk and did the whole Shiva thing before meeting Bruce, and she knows Shiva is her mom.
Batman (talking to an assassin who he had to track down because for some reason every big name is staying away from Gotham, not that he’s complaining, but he’s worried); why is everyone staying away from Gotham?
Assassin (small enough to be scared but big enough to have helped train Cass); I am NOT getting near that psychopath! I don’t know how she got away, there, or even learned to talk! No way am I taking that risk, fuck off Bats, I’m more scared of her than I am of you!
Now the fam is even more confused. Everyone is trying to figure this out, Cass is laughing in the corner. (Maybe with Dami)
A few days later, Talia storms into the cave and bitch slapped Bruce, she turned and hugged Cassandra.
Bruce (holding his cheek because that woman has a mean slap); what was that for?!?
Talia; not telling me my daughter is okay! I should do more than slap you! My poor daughter, I’ve been so worried, so has Nyssa. I should have murdered him and taken you as my own the second we met. Of course, father would be furious, but you are much better than him. I assume your mother knows, considering my beloved is still breathing.
Cass; yes, mother knows, approves of Bat. Says it good branching out, got away, yay!
Talia; I did not expect that. Anyways, if you have trouble with your grandfather, just call. You left fair and square, I shall protect you, not that you need it. Be good, my child.
Cass preened under the praise and watched one of her adoptive League mothers leave. Talia and Nyssa were always nice to her, wanting to help but not being able to, she loved them. She refused to answer questions.
Who the bat kids moms are;
Diana/Wonder Woman: everyone
Selina/Catwoman; everyone
Talia Head/Al Ghul; Damian, Jason, Cass, and maybe Tim