A Hallway North of the Main Gallery                    -      N      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

This huge gallery stretches upward as far as you can see into the
shadows.  It is longer than it is wide but from one side to the other it is
still quite a walk.  A forest of redstone columns, as thick as tree trunks,
rise up from the ground and are also lost in the darkness above.  The floor
is worn smooth, as if it has been worn down by many generations of feet
walking over its surface.