A Small Path                                           -      N      - 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

The tunnel narrows here, the rough hewn stone walls bare and clearly
visible, amazingly the walls are warm to the touch.  Steam rises from a
small creek that flows down the center of the tunnel, bringing a welcome
relief from the extreme temperatures in the previous areas.  The forge is
quite cleverly designed to include a built in cooling system.  
A soot covered slave toils away here for his master.
A blacksmith apprentice wanders around busily working the forge.