An Odd Looking Structure Arising                       -      N      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

You see in the distance, an odd looking structure arising.  Through the
faint light, you can make out what looks to be a building of some sort.  The
walls seem to spread farther apart as you continue on and the ceiling seems
to rise and rise, probably to accomodate whatever is up ahead.  You boggle
at what could be up there.  Your skin crawls as you contemplate whether or
not you should continue.