One

After the war with Gaea, and the wizarding world defeated Voldemort the Big Three are sent on a quest as a favour from Chiron to his old friend Dumbledore to protect the "Hero" of the wizarding world.

Percy, Nico and Thalia are sent to a British school for Wizards to protect some big headed wizard Henry Potter. Or maybe it was Harry ... anyways!

How will the wizards and demigods get on? Will they become friends, or will Harry's jealousy get in the way of everything? Find out what happens in the Demigods first, and possibly last year at Hogwarts.