The Teeth of Gwahlur

from the Adventure Summary: The PCs have gone south to the kingdom of Kush to see if the legendary Jewels of Gwahlur actually exist. Posing as mercenary generals for hire to train the warriors of Keshan, they learn of a forbidden city that lies within volcanic-like walls outside the capital of Keshan. Gaining access to the sacred city will be challenging enough, but once they learn about all the hands who want the jewels, they may get more than they bargained for.