I love Uncle Poseidon & Apollo (their adventures together under Laomedon as slaves, poseidon giving the oracle of delphi to Apollo etc etc) and it would be so funny if Apollo claimed Percy to protect him from his father and Hades. I bet Poseidon would be so relieved and thankful cause he was stressing.
Apollo also spoils his new cousin and visits via dreams like his other kids, Percy probably gets attached…
Then the trials of Apollo happen…
I love this concept because apparently, Apollo is also a patron of sailors, so it wouldn't be too big of a stretch to claim that Percy got very, very niche Apollo powers if he's ever caught using his water powers














