Buick to Hell - 1st level

           N
           ^            Index
          /|\          -------
           |          D: door
           |          S: secret door
                      s: winding stairs going down
           Top of room                        Bottom of room
               ___                                 ___
              /sss\                             __/   \
             |s   s|           To 2nd level <-- _      |
             |s    |                             |     |
              \s  /                               \___/
              _| |_
            \__ D __/                      
               |S|
                Passage to shaft
                 below buick

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