When members of the Shoanti Axe Clan saw fire shooting up into the sky over Varisia's Caliphak Mountains, they rushed to investigate. They found a pair of doors inscribed with runes from ancient Thassilon, along with clear signs that the doors had recently been opened. In recognition of the Axe Clan's expanding alliances, the Shoanti offered both the Society and a priest of Soralyon from Riddleport the opportunity to explore the ruin and neutralize its dangers. Now that the priest has vanished within the complex, the PCs must uncover the ruin's history before the Shoanti lose faith in them and take matters into their own hands.