The tunnels are long and curving, and often cross each other, though they are not all at the same height. There are several dead-end tunnels. The walls, floor and ceiling are made entirely from mud and soil. There is only one entrance, situated roughly in the middle of the catacombs on a 2D scale, with three different paths leading down. The entrance is concealed by a fallen tree trunk.
No-one really knows for sure what sort of nightmare creatures might live down there. Its name has sparked up connections with the assumed-deceased Rage Dragon Dreadfire, though this is most likely false.