Fire and Fang

Scott McCall's older sister finally returns to Beacon Hills to finish out her high school years. Scott is determined to keep her safe from his secret and a new threat thats arrived and makes her the target? in the midst of all the secrets Sky begins to fall for the mysterious Derek Hale. But what happens when he falls for her? Scotts sister also seems to have a dark secret of her own, Will she be able to keep it? or will she be exposed?