The heroes travel to Absalom Station to warn the Pact Worlds government of a fast-approaching threat from beyond the stars! But before they are fully prepared, the titanic spacecraft arrives and shuts down the fabled Starstone Reactor, plunging the station into chaos. The heroes must find a way to bring the power back online, while rescuing citizens and dealing with Azlanti spies, angry outsiders, and confused spirits. Can they save the heart of the Pact Worlds and take the fight to the strange alien vessel? "The Starstone Blockade" is a Starfinder Roleplaying Game adventure for four 16th-level characters. This adventure continues The Devastation Ark Adventure Path, a three-part, monthly campaign in which the players stop the threat of an ancient alien civilization in Starfinder's first high-level adventures! This volume also includes an examination of the church of Eloritu-the god of history, magic, and secrets-as well as a selection of ghastly new aliens! 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!