Ratmen's Old Mine Warren

Publisher's blurb: Rotten wooden walkways and crumbling lookouts span the darkness of this underdark gorge, clinging to stone pillars or the hollowed-out cliffs in which living quarters have been built. Twisting stone tunnels lead to rooms filled with soiled straw and leather bedding, wooden pikes have been set into the stonewalls and covered in trinkets, skulls and the blood of those that have been brought here.