Mastinu Kobai never planned to wind up on Copper Rock, the dome city built on an asteroid. Copper Rock, a den of crime, smuggling, and money grabbing, was also the perfect place for a murder. When the offices of Borzak and Rush needed someone to solve it, Mastinu was just the man for the job. When trouble catches up to him, can Mastinu save his own hide and find a way off the asteroid?