A Twisting Passage to the Dungeon                      -      -      - 
(-------------------------------------------------)     - <---(M)---> E
                                                        -      S      -

You are walking along the hall which connects the dungeon to the rest of
the castle.  The walls and floor are made from wooden braces and planks. 
These halls are patrolled by guards, in the unlikely occurance that a
prisoner may escape, so that they would be caught.