Danger faces the wizarding world. Voldemort has returned, and Harry's task seems more difficult than ever. At Camp Half-Blood, the seven are issued with a new quest: go to Hogwarts disguised as wizards, and help in the war. Busy trying to fit in, can the demigods shift the tide, help in the war and protect Harry, Ron and Hermione? Or is Hogwarts too much?
Crossover - Harry Potter & Percy Jackson and the Olympians - Rated: T - English - Adventure/Fantasy - Chapters: 43 - Words: 118,339 - Reviews: 935 - Favs: 327 - Follows: 433 - Updated: 1h - Published: 4/13/2015 - [Percy J., Annabeth C.] Harry P., Leo V.