The Entrance to a Cavern                               -      N      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

The entrance to the small cave shows more signs of activity as you near
it.  Large footprints and rubbish litter the area.  Signs of recent activity
show a large group seems to have moved past here recently.  The walls to the
entrance are covered with scratch marks from some long hideous edged weapon,
and the floors are worn smooth.  Upon closer examination, you realize that
the prints were made by a group of giants.  A old and broken sign, half
covered in dirt lays here.