From publisher blurb: In conjunction with d20PFSRD.com and Rogue Genius Games, the Four Horsemen have created a location free of any specific map, ready to be used to spark your own adventures or fill in the dark corners of an planar exploration that's gone places the GM didn’t expect. A terrible citadel created by the Nether Mage, a long-since missing tenant, Pakuvresh is a dread factory endlessly churning out constructs of once-living flesh. The stronghold now drifts through shadowy realities, sending out bound fiends and using automated and undead labor to build a flesh golem armory… for unknown purpose.