Khtandrek resides in the Underdark City of Nexus, a vast network of reinforced caves, tunnels, grand temples and simple housing. The sound of running water is everywhere in the city, which is also a nexus for several underdark rivers, the very reason for the city's existance. A magnificent waterfall thunders down the central cave of the city, illuminated by sorcerous light.
Enormous caves south of the city supply edible fungi and cattle, laboruoisly grewn and bred by legions of Kobold labourers who also mine iron and coal in the lower depths. Duergar craftsmen create masterful works of weaponry, tools and art and are the true economic strength of the city. Patrols of Hobgoblins keep the peace, supervised and protected by powerful strike-forces of elite Troll warriors.
In the Temple of Confluence, a massive fortress of polished obsidian, granite and steel, the Living God sits eternally vigilant, ruling Community, the great cosmopolitan empire of the North, trough the eyes of ten thousand clerics.