Welcome to the jungle. Now that you are a member of the Starfinder Society and equipped with your own ship, the heroes set off for the planet Castrovel, home to the best universities of the Pact Worlds, to investigate the clues found on the mysterious asteroid known as Drift Rock. Their discoveries lead them to an ancient elven temple city called the Temple of the Twelve, hidden deep in the wilderness of Castrovel. Alongside the dangerous flora and fauna of the jungle, the heroes must also contend with two other factions: the banished Corpse Fleet of Eox and the Cult of the Devourer, both of whom are interested in the secrets of the asteroid and have a clear idea of how to utilize the ancient alien technology hidden within it—if they can find it first! This volume of the Starfinder series continues the Dead Suns storyline and includes: - "The Temple of the Twelve," a Starfinder adventure for third-level characters, by John Compton. - A travel guide to the wild planet Castrovel, by John Compton and James L. Sutter. - Information about the destructive Cult of the Devourer, including a new connection for mystics and cult-specific gear, by Owen KC Stephens. - An archive of new and unusual alien creatures, by John Compton, Jason Keeley, and Robert G. McCreary. - Statistics and plans for a new spaceship, by John Compton, as well as details about a moon whose planet has vanished into a black hole, by Jason Keeley, in The Atlas of Worlds.