OK, this isn't the usual how do I get through the portals question. My question is....How the hell can I kill all these demons without getting my ass kicked?!!

My party consists of:
Me(Azuran) Ranger-Level 20
Minsc Ranger-Level 20
Jahiera Fighter-Level 15/Druid-Level 14
Imoen Mage-Level 18/Thief-Level 7
Aerie Cleric-Level 15/Mage-Level 14
Nalia Mage-Level 19/Thief-Level4

I don't think I should have any trouble considering my exp. but I keep getting killed.
I have also heard that the higher the level of your characters the more difficult Watchers Keep is. Is this true?

Thanks

I don't know if the ToB forum is dead but if it's not you should try it there. (You'll probably get your answer faster than here).