Dark Sun: The Scorched World of Athas
Destroyed city-state near Nibenay, once ruled by the sorcerer-king Dregoth. The city is half buried in silt. It appears deserted, and its ruins show evidence of a terrible sorcerous battle fought here long ago.
A network of tunnels exists beneath the ruins city-state. These tunnels lead to a city of the dray in a massive cavern about a mile under the ground.
A powerful undead dray named Absalom resides in the city below the ruins and possessed an Orb of Kalid-Ma.