At this point I wish it wouldn't be impossible to access all the dungeons after really definitely killing all the monsters for exploring only. I mean, time moves on and for example Haukke Manor is (as said in the Halloween quest) now kind of vacant and "bookable" for people interested in doing that Halloween stuff every year. :D How about building it up? Or explore it and find something awesome with other NPCs, maybe as a sidequest or something like that.
