The security officer aboard a luxury space liner, the Chimera, goes missing after the heroes witness her arguing with a passenger. Soon after, the Chimera's engines fail and defy repair. A scholarly patron asks the heroes to investigate the disappearance, which involves murder, misdirection, and misapprehension. To unravel the murder mystery around them, the heroes must follow clues about more than one enigma aboard the Chimera. Secrets and unexpected foes abound. In the end, the investigators find that the whole whodunit is only part of a much larger conspiracy! "The Chimera Mystery" is a Starfinder Roleplaying Game adventure for four 1st-level characters. This adventure begins the Threefold Conspiracy Adventure Path, a six-part, monthly campaign in which the heroes unravel the machinations of insidious aliens who have infiltrated galactic society. This volume also includes an article on running mystery scenarios, more on spies in the Pact Worlds and beyond, and a selection of new alien creatures! Each monthly full-color softcover Starfinder Adventure Path volume contains a new installment of a series of interconnected science-fantasy quests that together create a fully developed plot of sweeping scale and epic challenges. Each 64-page volume of the Starfinder Adventure Path also contains in-depth articles that detail and expand the Starfinder campaign setting and provide new rules, a host of exciting new monsters and alien races, a new planet to explore and starship to pilot, and more!