The gas filled swampland that completly surrounds the necropolis. There are very few who know how to survive the corrosive mists. the mist that fills the air like a pugnant musk, is corrosive to flesh and metals or anything else for that matter. There are some beasts that can survive the mists although the lay in hiding untill fresh kill lures them out to devoure the corps befor the mist corrodes them away.
