Deep Chaymyn

The deepest known dwarven hold, located almost a dozen miles beneath Seven Cities, in the very bowels of the Middledark. Deep Chaymyn is sealed off from the rest of the Underdark by massive bulkheads forged by its inhabitants, and by powerful wards. It is rumored that its inhabitants never venture outside their city, that they have ample food and water supplied naturally, and that none of the inhabitants of the hold have perished in more than three hundred years.