"Luke thought he knew who his enemies were. The Shackleton Co-operative. Calvin, the chief of security. The whole town of Phoenix. But then Luke wakes up strapped to a metal chair in an underground lab. There are more enemies - and they've been waiting his whole life to track him down. Meanwhile, up on the surface, the people of Phoenix are beginning to disappear ... There are 49 days until the end of the world."--Page 4 of cover.