Thomara

Crypts of Thomara was a subterranean vault city, built around a precious vein cluster by xenophobic dwarven Thomara clan in the early years of Age of Arcanum. It's said that terrible madness fed into the citizens' greed, leading to cannibalism and collapse of the society a thousand years prior to Vecna's ascension. Scanlan revealed that the city itself was built inside a fallen titan, which Vecna resurrected to carry Thar Amphala to Vasselheim