I don't know if Apollo made an appearance in TSATS, but if he did, he was probably butchered too, because Apollo WOULD NOT let his children go to Tartarus.
If he heard what Will and Nico were up to, he'd kidnap them and put them safely in his sun palace. He'd be like, 'OH MY GOD. NO YOU'RE NOT GOING. LEAVE THIS TO ME.'
He'd try to talk to Hades about rescuing Bob, but if he learnt that Hades was the one who sent the message?
Boy oh boy....................RUN FOR COVER.
Los Angeles wouldn't just have an earthquake, it would be decimated entirely. Apollo would not hold back, not even if Hades was one of the Big Three. Multiple gods would have to intervene, probably.
'WHAT DO YOU MEAN YOU SENT YOUR OWN CHILD TO TARTARUS YOU ABSOLUTE (REDACTED REDACTED REDACTED). AND MY SON WAS GOING TOO? YOU LITTLE (REDACTED)-'
Apollo would not let Will or Nico go Tartarus. No way in hell.
The entire PREMISE of The Sun and the Star is built on the worst logic ever.
Hades sends his son to literal hell knowing that he could die just to get a Titan (who has his memories back, mind you) out of it. Because apparently 'Bob was getting too loud'.
If Hades can get that satyr out of Tartarus, then why the hell can't he get Bob out of Tartarus?
And don't tell me he can't, because Bob was literally allowed to be a janitor at Hades' palace when his memories were wiped. And Bob decided to be good, so Hades could easily take him out of there
This just says how bad The Sun and the Star is as a book.
I mean, why didn't Rick just give us short stories of Nico and Will between HOO and ToA? That would have been way better.