The Arcane Potter

Lily and James Potter had two sons; Harry and Avery. Harry was given to the Durselys' to keep out of harm's way, yet it was his younger brother, Avery, that got into harm's way. The younger Potter, was savagedly attacked by Fenrir Greyback, the details aren't clear but it was enough to cause Avery Potter to bear the curse of being a Werewolf. Imagine that. A Werewolf. In Hogwarts.