Arcanamirium transmuter Maren Fuln found a magically sealed amulet in the school's library and kept it as a shiny bauble. Little did he know the amulet contained an entity far worse than he imagined, and by unsealing it, he loosed a revenge-obsessed horror into the sewers beneath the school. Can the Pathfinder Society halt the beast’s plan in time, or will he build his army of revenge and sow chaos in Absalom?

Appearing only once a century in the western deserts of Katapesh, the Asmodeus Mirage has plagued Golarion for thousands of years. Powered by a crystal bone devil skeleton and legendary for trapping unwary travelers, the Society has a vested interest in studying and cataloging the source of its power. You have been sent deep into the deserts of northern Garund to enter the Mirage—but there's a catch! The Mirage only exists on Golarion for 24 hours every 100 years. Get trapped in the Mirage, and you may never see Golarion again.