Here in the dank underground, moss covers the moisture laden walls and it reeks of mold and milldew. The hewn tunnels led deeper and deeper until finally you came upon this place. There is little light here, but at least the the air is not as cold here. The smell however makes you long for the smell of mold and fresh moss. A Pungent and acrid stench only humans clumped together produce, mix with the smells of rust and amongst it all coal. The air is heavy and depressive and in the distance wails and crying can be heard as well as the muffled roar of a fire.

The cultists prison is a small dungeon. It is 27 by 32 in squares and among the variations are an empty and a secret-less version.

I plan on having pots on top of every cage which if the players aren't careful can be broken with the flick of a lever to make the inhabitants go crazy and attack. The fires fuel several large iron barrels with pipes coming out. Which in game are used to spray the acid in the boss area with steam.