Percy Jackson and the Wonderful Twin

Percy Jackson was in for a treat when he made Hera promise on the river styx to stop messing with his family and friends.

Allie has never had any family. The closest person she has to the term was her old caretaker, Aunt H. But even she left once Allie turned eight. Now seventeen, she ran from her foster home to the city that never sleeps. What happens once she finds out that she is nowhere near the last of her family.

(See the "first chapter" aka the backround)