Legacy (A percebeth story)

So, basicaly, Percy moves to San Francisco (he's 17) WIth his mom because she has really bad arthritis, and the winters I n New York are tough on her. So as like an addition she and Percy also move to where Annabeth is, an extra perk if you will. But Percy doesn't know something powerful is following him, and he leads it right to Annabeth and her highschool, so now they have this monster to deal with while also having to keep their grades up. One of the mortals at the highschool unknowingly has an enchanted camera that can see through the mist passed down from generation to generation in their family. They know monsters are real, and there's nothing stopping them from exposing them and demigods to the world.