Source: Into the Darklands, pg(s). 43
The drow city of Giratayn lies in the upper levels of the Darklands realm of Sekamina, located far below the surface nation of Druma. It trades heavily with the nearby Nar-Voth city of the duergar, Hagegraf.
The Jailed Emergence, a sinkhole in Druma that plummets through Nar-Voth and into Sekamina, is the nearest exit to the surface. Above ground, it is ringed with stone towers oriented toward defending the surface from subterranean interlopers, and Prophets of Kalistrade fund protective walls that also mask their far quieter slave trade with Darklands drow.