From the back of the book:
A Pathfinder Society Special designed for levels 1–11.
Astronomers have marveled as the famous comet Aucturn’s Tear once more soars through the solar system, yet this cycle, strange portals have begun opening on each planet the comet passes, and a powerful entity trapped on the other side of these gateways desperately calls for help. To the Pathfinder Society, this is a once-in-a-human-lifetime opportunity to discover what lies through these portals—and either free the captive trapped within or ensure that it remains sealed forever.
"The Cosmic Captive" is a multi-table interactive adventure in which each group’s actions contribute to the entire room’s success.
This scenario is designed for play in Pathfinder Society Roleplaying Guild but can easily be adapted for use with any world. This scenario is compliant with the Open Game License (OGL) and is suitable for use with the Pathfinder Roleplaying Game.