Calista

Have you ever thought J.K.(Still my queen) Might have left out something? Or someone?
Calista has just got out of the death eaters grasp, now she is in her first/forth year at hogwarts and unforunitly Tom Riddle hasn't forgot about her.
Calista Strof is a witch that can freeze water without even touching it and can sense anything that has liquid in it from a mile away. She also needs pills to keep her sane. But to make things better she breaks all the rules Sirius gives her in less then a month, yay.