A subterranean nuclear storm erupts during Kill Week, but the real danger may lie within"¦ All eyes are on ONIS Corporation'"s most mysterious crew member, Boo Wright, after rookie Roy Wilder'"s first shift as a deep-Earth diver took a strange turn under the veteran'"s guidance. In the first of many perspective shifts to come, experience the thrill and terror of the world'"s most dangerous job from Boo'"s perspective: the harrowing impulses that make him tick above ground, and the secrets he carries below.