[DraySkullan]

I remember this one. It automatically dispels all magic in effect on you, and you can't take anything with you. What I did was take my cleric, avoid the fire (you can see orange circles a few seconds before the flamestrikes hit), and cast a couple of animate dead spells. If you get a greater drowned dead or a elite greater boneguard... you're golden. They'll take down the monks pretty easily while you just run around trying not to get toasted.

One thing I thought about later but never got to try was a thief. Greater Evasion should keep him from getting torched, but I wasn't sure if he could deal enough damage on his how w/o magical weapons.