Carefully hidden from the world, the Island is only accessible when the door opens for nine days every nine years. A lot can go wrong in nine days. When the beastly Mrs. Trottle kidnaps the prince of the Island, it's up to a strange band of rescuers to save him. But can an ogre, a hag, a wizard, and a fey really troop around London unnoticed?

    New pupils are made to sign their names in blood; the French teacher disappears every full moon; and the assistant headmaster keeps something very chilling in his room.