On their voyage through space back to the Pact Worlds, the heroes and their new Stewards allies begin to realize disturbing gaps in their recent memory, missing moments of lost time replaced with dreamlike impressions of imprisonment, surgery, and shadows. A Stewards base on a fiery moon of the gas giant Bretheda seems to offer respite from paranoia and pursuit, but unseen enemies lurk even in the heart of the systems most powerful institutions, and the web of alien conspiracy enshrouds all of the Pact Worlds!

"Deceivers Moon" is a Starfinder RPG adventure for four 5th-level characters. This adventure continues 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 book also includes an article describing the insidious reptoids, a catalog of starships used by the Unseen, and a selection of new monsters, including cryptids from the Starfinder setting.