Brigands of the Moon

A crewman on an interplanetary mail-and-passenger flyer becomes involved when the secrecy of a privately funded lunar expedition is compromised. Military investigators instruct him and a radio operator colleague to monitor a roster of suspicious passengers and guard against espionage tied to rival planetary interests. As the voyage unfolds, alliances erode, violence breaks out aboard ship and on the Moon, and the protagonists face brigands amid corporate and political maneuvering over precious lunar resources. The plot combines tense action and investigative elements with speculative technology, following the shipboard viewpoint through escalating danger and efforts to secure the expedition's discoveries.