So I am putting this up for any of you guys who have any theories about anything in HOO series (Carter-Percy conneciton included) no matter how crackpot it seems. WARNING: SPOILERS FROM PREVIOUS BOOKS MAY OCCUR!!! Just have some form of evidence for your theories. Ill start with mine, I think in order to defeat Gaea Percy is gonna have to call on Carter to form an alliance between the Greek/Roman gods and the Egyptian ones.