Thanks for the tip.
Edit:
Found the beastie. From the camp, uhm... Duh!
Had been making it much too difficult. Does bring up a question though. Was Experimentator & all the other baddies meant as test dungeon or some kind of final battle?
All those baddies & treasure bath kind of a game breaker for other dungeons, or just haven't found ones designed for >= L-40?
Go into many of them now & it's like, "Meh... The other place was more fun!"
