An Underground Glacier                                 -      N      - 
(-------------------------------------------------)     W <---(M)---> E
                                                        -      S     SE

Strange visions fill your eyes as you scan the horizon of the huge
underground glacier.  All that you can see is the blue-white glow of the
permafrost ice.  Once this huge glacier was above ground, covering a large
mass, but was somehow buried here, deep underground.  Strange creatures now
inhabit this glacier, wandering aimlessly about on the familiar scene.  As
you look about, all that can be seen is a dark ceiling, and the white floor,
making navigation through here, quite difficult.