In this dark and gripping sci-fi noir, an exiled police detective arrives at a lunar penal colony just as a psychotic android begins a murderous odyssey across the far side of the moon. Purgatory is the lawless moon colony of eccentric billionaire, Fletcher Brass: a mecca for war criminals, murderers, sex fiends, and adventurous tourists. You can’t find better drugs, cheaper plastic surgery, or a more ominous travel advisory anywhere in the universe. But trouble is brewing in Brass’s black-market heaven. When an exiled cop arrives in this wild new frontier, he immediately finds himself investigating a string of ruthless assassinations in which Brass himself, and his equally ambitious daughter, are the chief suspects. Meanwhile, two-thousand kilometres away, an amnesiac android, Leonardo Black, rampages across the lunar surface. Programmed with only the notorious “Brass Code” a compendium of corporate laws that would make Ayn Rand blush, Black has only one goal in mind: to find Purgatory and conquer it.