Foggy Hallway                                          -      N      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

The smoke grows denser while the stench grows stronger as you walk
further down the hallway.  Large, dark shapes swarm through the muck on the
floor and splatters of blood decorate the slimy walls.  Upon closer
inspection of the floor, you see two lines in the slime leading up the
hallway to the north, almost as if something was dragged through the room. 
Through the fog to the south you see the end of the hallway, and to the
north you see a turn.