A Sinister Tunnel                                      -      -     NE 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      -     SE

As you walk though this narrow tunnel, a cold wind blows past you.  Since
the air elsewhere has been perfectly still, you wonder what could be causing
this phenomenon.  The walls of the tunnel are painted with a sticky red
substance that strongly resembles blood.  You shudder involuntarily,
wondering what the Dark Power's minions have been up to.  
'Halt!' a diabolical invoker exclaims. 'You will not be allowed to impede our plans!'
A diabolical invoker waves his hands franticly through the air!
A diabolical invoker begins muttering an incantation and making arcane gestures...