The Sudden End of the Trail                            -      -      - 
(-------------------------------------------------)     - <---(M)---> E
                                                        -      S      -

Suddenly, the trail stops.  The edge of the trail drops into another
rocky trench, and pebbles run down the side of the cliff at your feet. 
Perhaps taking a step back is in order.  To the east, you can see the
beginning of the trail, and an odd breeze blows through the tree line from
the south.