Man Slurry

OK, I've got Vahkohs the vampire haunting me (in Avernum 3) with disease and dumbfounding every day, because I sort of killed him. I figured it would go away after a while but it must've been like 30 or 40 days since.. so what do i have to do, anyone?

Thanks alot. Thought I'de have to start over for a second there. And thanks for the tips.

Oh this is in Avernum 2 by the way

Is there anyway of reversing the energy pulse mind crystal effect, cos my preist is useless right now. She can't cast anything. Thx