Foggy Hallway                                          -      -      - 
(-------------------------------------------------)     W <---(M)---> E
                                                        -      -      -

A brisk chill permeates this part of the foggy hallway and the light
bouncing off the wisps of puffy gray smoke make it difficult to see. 
Strange shapes that looks like large insects race around the floor while
cobwebs begin to catch hold of your equipment.  The slimy green film that
fills the cracks on the dark stone walls seem to be creeping down to the
floor making it slightly slippery in some steps.  To the west you can barely
make out a stone wall indicating either the end of the hallway or a sharp
turn north or south.  The foggy hallway thins a little to the east.  
An enormous cave slug slithers along leaving a trail of slime behind.