The adventurers need only embark on one last quest to undo the disastrous tinkering of the Obscurati and remake reality into an age of their own design. That quest will take them to the Gyre, where they will rescue other dying worlds to help restore their own, and where they must defeat the Voice of Rot. If they fail, their homeworld will be drawn into the Gyre and annihilated utterly, and all their investigations and heroism will have been for nothing.
The penultimate ZEITGEIST adventure begins! In addition to the overview of the module, this includes Act 1: Turning and Turning, a ghost vortex horde (CR 9), and maps of the Aurum Treasure skyship and Thistle Palace.