A Narrow Ledge                                         -      -      - 
(-------------------------------------------------)     W <---(M)---> -
                                                        -      -      -

You are walking along a precariously narrow stone ledge on the second
floor of Focault's residence.  Wind blows all around you, and seems to be
encouraging you to release your tight hold upon the bricks of the building. 
attached to the side of the building here, running up and down the length of
the wall.