Basement Stairs                                        -      #      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      #      -

You are standing at the top of the basement stairs, which extend down
into darkness.  You are unable to tell exactly what is stored below, but all
catch a glimpse of movement across the floor.  Perhaps it wouldn't be such a
good idea to go into the basement after all.