A Shattered Ledge                                      -      N      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      -      -

This small platform juts out from the side of a massive circular chamber.
The most obvious feature of the cavern is the fact that it is filled with
fire, rising up from far below.  It looks like the ledge you are standing on
ran all the way around the room at one point, but the constant heat has
caused parts of it to break off.  The parts that remain don't look very
stable, and you decide that staying away from the edge is a good idea.  You
can safely make your way to the north or through a small hole in the wall
below you.