the angle that turned into the devil

sarah isnt your normal girl. shes locked up away from the world and what horrors lies in store for her as she realised someone is trying to kill her to top all that she was abbanend on her foster mum and bros door step and they bern hiding from her who her real parents are. just as she thought she found someone that wanted her safe they soon turned and changed to the devil. will she ever get away and find her family? or will she be stuck for the rest of her life at that old cramped house