PFS2 - Pathfinder Society Scenario #2-21: In Pursuit of Water

The Pathfinder Society sends the PCs to the Thuvian city of Aspenthar, where they learn that div-worshipping cultists have taken violent measures to secure the ancient keys to a mysterious site out in the desert. With one of the keys in their possession, the Pathfinders travel deep into the desert to find this site and stop the cultists from bringing their destructive plan to fruition.