The highly anticipated 10th book in the #1 New York Times, Wall Street Journal, and USA Today bestselling series, with over ten million copies in print!

Jack and Quint are trapped in the Monster Dimension! Their prevent Rezzoch the Ancient, Destructor of Worlds, from reaching Earth and annihilating civilization. To do this, they must secure an audience with a creature more mysterious than any other. It's a race against time—and a race through the monster dimension! But before they can get back home to June and Dirk, Jack will find himself in a confrontation that will change everything. . . .