Face the prophecy. Gregor can't believe it. Just moments ago, he was playing in Central Park with his little sister Boots, and suddenly she has vanished. A giant cockroach leg points the way to the Underland – the land beneath New York that Gregor never wanted to return to. There, his bat Ares, the rebellious princess Luxa, and a new prophecy await him. It involves a white rat and the possibility that Gregor could lose what he loves most. Gregor has no choice: he must confront the prophecy and brave the dangerous journey across the water into the heart of the labyrinth. For it is here that he will decide the future of the land.