Ever since his schoolmate, Alice Wilde, disappeared down Back Half Moon Street, sixteen-year-old Preston has not slept well, knowing Alice went to investigate the disappearance of other kids in Manchester; but Preston promised not tell the police, so there is only one thing to do--follow her into Dark Manchester and rescue her himself.

Mal, Evie, Carlos, and Jay have received threatening messages demanding they return home. They have a sneaking suspicion that their villanous parents are behind the messages, and something Evie sees in her Magic Mirror confirms their fears. Although Maleficent's just a tiny lizard after her confrontation with Mal, could she have found a way to escape? Mal and her friends determine to sneak back to the Isle to get to the bottom of the mystery.