Yeah that's a rather low quality dungeon. You kill a million skeletons and rats and then at the end is the biggest asshole enemy in the entire game who's stronger than all the enemies in Morrowind combined.
Yeah, what's up with that? I just couldn't defeat the motherfucker. Granted I only played this plugin once (with my latest character) but my nifty rogue couldn't last more than 5 seconds in there. I tried everything from paralyze, levitation and reading him a god damn bedtime story but he just kept farting in my face and calling me names.