Sabrina, Daphne, and Puck, stuck in the Book of Everafter, chase the Master through a series of stories, where they're willing to change what they need in order to save their baby brother. Soon, however, they are confronted by the Editor--the book's guardian--who, along with an army of tiny monsters known as Revisers, threatens the children with dire consequences if they don't stick to the stories. Faced with a challenge like this, will they be able...

Although filled with anger over her parents' disappearance, eleven-year-old Sabrina Grimm, along with her grandmother, sister, and several fairy-tale characters, tries to discover who has killed her teacher.