A Crypt                                                -      N      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      -      -

This is a small, cramped crypt intended for some unknown rich merchants
or nobility.  There are two stone caskets in the center of the room and
several burial vaults in each of the walls.  The caskets look quite new, and
after a brief struggle you manage to push one of the lids ajar.  There is
nothing inside the casket, and you wonder why it was built in the first
place.