I tried to solve the dark conconation (or something) quest and got defeated. After my sovereign regained his hp I moved into a completly other direction and a few turns later I got the "you defeated the dark wizard" message. Only thing that may happened is that my town that was quite near to the place built something.
Dump (a few turns later): http://dl.dropbox.com/u/6141154/Elemental0_803-2010-06-18T15-21-04-327.zip