You are standing in the lobby of a huge dark building. Pipes, all sizes and different colours, run along the ceiling, down the walls, along the floor and up the other side, disappearing into strange machines and vats containing slowly curdling GUNK. The floor is slippery, wet and brown.
To the north is a small door, to the east a dim archway, and to the west, hidden behind a machine which is busy mixing vile liquids, is a dark damp passageway. A stairwell is in the centre of the room leading down into a quiet room from which noxious vapours swirl.