The Mage Conclave was a group of Kethsian mages mentioned in Dathana's message which is found on Isle of Sann on Kethsi during Ritual of the Mahjarrat. Elder Mage Etheron brought the Stone of Jas to the conclave on Mount Firewake after discovering it in the outer planes. After the dragonkin invaded Kethsi, the 52 Grand High Mages attempted to cast a spell to repel them, but it backfired and killed all but 9 of them. The headquarters of the conclave were later destroyed, and the civilisation was wiped out.