Creepy Corridor                                        -      N      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

Unlike most of the other passageways through this section of the
mountain, the walls here are very rough.  There are a number of small
indentations along either side, providing the perfect place for someone to
hide in wait for you.  You find paranoia beginning to set in as you walk
along, and hurry your pace to find a more open area.