A Dimly Lit Intersection                               -      N      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

The tunnel walls here are slick with dampness.  Numerous mosses grow,
sporadically feasting off the damp walls.  Torches flicker quietly along the
walls throwing dim light throughout the area.  The tunnel itself looks like
it has been well traveled.  That and the fact that it is incredibly clean,
makes you believe that this must be a main access tunnel of some sort.