The Phoenix Files Underground

Luke thought he knew who his enemies were - the Shackleton Co-operative, Calvin, the whole town of Phoenix. Then he wakes up strapped to a metal chair in an underground lab, facing enemies who have been waiting his whole life to find him. Up on the surface, people are starting to disappear, and it's unclear whether Phoenix is finally letting residents leave or the Co-operative is tightening its grip. Deep underground, Luke is about to uncover a secret that changes everything - with the countdown to the end of the world still running. Part of the six-book Phoenix Files series.