Prologue

"We have something Voldemort doesn't have. Twin power."

Cassia is the twin sister of Harry Potter. Following the murder of Lily and James, Cassia is taken to Ted and Andromeda Tonks, far away from Harry. 11 years later, the two are accepted at Hogwarts and reunite, by chance, at Ollivander's. At Hogwarts, Harry and Cassia learn magic, form friendships, fight evil, and in (Cassia's case) maybe even meet their soulmate.

*I don't own anything except my OC, Cassia Helena Potter*