A Swampy Chamber                                       -      N      - 
(-------------------------------------------------)     W <---(M)---> -
                                                        -      S      -

The walls in this section of the caverns look rather similar to the rest
of the area, but the floor here is covered with a thick sludge that reaches
up to your knees.  The ooze makes a disgusting squelching sound as you move
through it, and you notice that there are a number of insects infesting it. 
Resolving to clean yourself off as soon as possible, you move on in search
of an exit.