I

Gaea has fallen at the cost of Annabeth's life. Percy tried to cope, but just as he was getting used to his wise girl's absence, disaster struck. Now, Percy will have to enter a new country, fight in a new war, and try to survive his tutoring in the ways of the wand.

Disclaimer:
Percy Jackson and all characters from that series belong to Rick Riordan, and the Harry Potter series belongs to J.K.Rowling.