The Szandite Collective is a peaceful federation of worlds connected by magical crystals. When planet Krethiskar fell silent, the galaxy's worst fears came true. The destructive Swarm had annihilated Krethiskar's defenses and transformed the world into an incubator for future generations of hive-mind-controlled shock troops. This time, the Swarm isn't simply annihilating everything in their path--they might just be converting their conquests into terrifying new weapons! This 144-page hardcover adventure includes a complete Starfinder campaign for characters of levels 6-10. The book also includes a stellar rules appendix that offers new playable ancestries, magic items, and monsters designed to deploy into your Starfinder Second Edition game! Written by Kate Baker, Joan Hong, Letterio Mammoliti, Matt Morris, Dennis Muldoon, Emily Parks, and Sam W Tennyson.