Martin Aubrey put a stop to the violence plaguing the city... and it nearly killed him. The bombs have stopped, but the poisoned children haven't woken up and he is the only one who believes the real villain is still out there, hiding in the shadows. One-hundred-fifty miles outside the city, an enormous monolithic prison complex looms over the region. Inside the curved walls of the the Keep, Members of the Order lurk selecting inmates for death according to their whims. An Apprentice Member and her Mentor discover a dark plot amongst their brethren. Together, they steer down a path of no return while violence like they've never witnessed brews, promising to erupt beneath them. Martin Aubrey pursues the truth and soon realizes he's being hunted by a cunning assassin. The closer he gets to answers, the closer he comes to his own end. To survive, he'll need help from unlikely allies--professional killers and a known criminal. Aubrey's relentless pursuit to undo evil has led him here. Now, he digs ever deeper for answers... but will it ultimately bury him?