A Mysterious Forest                                    -      N      - 
(-------------------------------------------------)     W <---(M)---> -
                                                        SW     -      -

This forest is very dense, and made of many types of plants.  There are
trees overhead, with large thick trunks, covered in very dark bark.  Some of
the branches from these trees hang low, and you can see the wide black
leaves.  There are vines and undergrowth covering the ground, and gets so
thick that you cannot walk in some directions.  As you look up, you cannot
see the ceiling, nor a source of light to give these strange plants life. 
You cannot tell where you are, and hope that your amazing sense of direction
will guide you to your destination.  
The spirit of a long dead horse floats here.