The Drift is a mysterious plane of roiling pink and purple colors that allows for hyperspace travel and interplanetary communication. Starships navigate the Drift using Drift engines, and the speed of arrival is determined by the density of Drift beacons in the vicinity of one’s destination. Unfortunately, with each activation of a Drift engine, a piece of another plane crumbles away and is transplanted in the Drift, leaving the plane littered with extraplanar debris and broken structures.

Over the past year, numerous agents of the Starfinder Society have encountered a mysterious anomaly while traveling through the Drift: an artificial, alien structure unlike any starship or space station on record, that scrambles communication signals. This structure appears without warning and vanishes just as swiftly, and has proven to utterly confound starship scanners and magical assessment. Curious about this persistent anomaly, Venture-Captain Arvin has consulted a diviner and fellow Starfinder, Nykiti Lampadephoros, to determine the next known appearance of the site. Directions in hand, Arvin dispatches a team to locate and explore the Drift anomaly.