It’s like nothing anyone has ever seen before. Utopia is the brand-new frontier of theme parks, a fantastic collection of Worlds each so authentic it takes the average visitor’s breath away. Teeming with cutting-edge holographic and robotic technology, it has captured the nation’s imagination. But it has also attracted a group of ruthless criminals. After infiltrating the park and its computer systems, their leader—calling himself John Doe—sets the parameters: If their shocking demands are met, none of the visitors to the park that day will be harmed; if not, then all hell will rain down. Dr. Andrew Warne, the brilliant engineer who designed much of the park’s robotics, suddenly finds himself in a role he never imagined—trying to save the lives of thousands of innocent people . . . one of whom just happens to be his daughter. “Terrific . . . a sensational piece of popular entertainment . . . [Lincoln] Child has created a fictional wonderland that is both high-tech and nostalgic. . . . If you are looking for intelligent fun, it doesn’t get much better than this.” “[A] whiz-bang plot . . . springs to life from the opening pages . . . Child does an outstanding job of depicting the workings of this fantastic playground.” “A riveting read . . . part mystery, part science-fiction, and all page-turner.”