Summoning Chamber                                      NW     N      - 
(-------------------------------------------------)     W <---(M)---> -
                                                        -      S      -

The ground in this large room is streaked with blood and gore, and you
notice that there is a pentagram chalked in the center of the floor.  Upon
closer examination, you discover several sets of huge footprints that are
imprinted right into the stone floor.  You wonder what could have made such
tracks, and judging from the growling sounds coming from the south you might
soon be able to find out.  
'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...