Colonies of the Bad Step's Cavern Cities at the far base of the mountains in the geographical Cold Swamp. There may be six major cities arranged atop the Bad Step, but there are 15 Sinks at the bottom. This is so, on account of how rich in resources the area surrounding the sinks are; and can extract and deliver to their mother City. Ordinarily, it would be too frigid for anyone to work comfortably for any length of time while in the Cold Swamp. But like the swamp people and their Fire Wells; colonists have learned to utilize the hot-rocks at the cliff foots to warm homes and communal areas. As a result, Sinks tend to be slithery in shape; hugging tightly to the cliff face like a beard on a man and only stretching as deep into the interior as the Hot Rocks naturally do. As unlike most things, Hot Rocks cannot be mined and maintain their heat. As soon as it is broken and carted away it begins to cool and so their use is the most heavily regulated commodity in all Sinks.