Dungeon Terra                                          -      -      - 
(-------------------------------------------------)     W <---(M)---> E
                                                        -      -      -

The western room is pretty much totally dark.  The illumination from your
equipment and light source doesn't provide much help here.  Several meters
to the east is the exit.  Some loose dirt and small stones are showering
down around you, you notice some large rocks high on the walls and in the
ceiling that look as if they might fall at any minute.