Heading Downwards                                      -      -      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

You are heading downwards.  The walls seem to come closer together and
the ceiling seems to drop, making this an uncomfortable tunnel to go
through.  As you make your way through the tunnel you begin to hear noises,
sounding like an evil laugh.  You wonder where this tunnel leads and what
awaits you when you arrive at the end.