Legends Meets Magic (Not This One)

Percy got betrayed by most of his friends, The gods, and his very own Mother. He Ran away to the only people he knows he can trust, The goddess Hecate. Hecate sent him to Hogwarts but of one condition, He has to protect Harry Potter until his battles against Voldemort. How long can he keep his cover, and What if his 'Friends' find him again?

Adopted by ImApersonWHOreads

I DO NOT OWN PJO HoO or HP. I might fix my mistakes a lot