I'm playing a character with the expansion on. I searched all of level 10 including trying to blow up two walls with bolt of mass destruction. Is Dredmor supposed to be on level 10 even in the expansion? Did I just miss him hiding somewhere else? I am playing with Promethean Magic, is it possible I could have killed him without seeing him?
Lord Dredmor will always been on the last floor. If there are downward stairs, you're not deep enough.