Yeah, it's weird. I've had almost no issues with the other fights - I was leaving one character up top to finish enemies off up there, and trying to pull aggro away from tables at the bottom, but the enemies literally seem to ignore my party half the time and simply set fire to the tables. I'm 20 too, Swashbuckler Eder, Pure Priest Xoti, Chanter/Barb Konstanten, Mindstalker MC, Pure Wizard Aloth. I'm at about 5 attempts in at this point, and I'm not quite sure what other tactic I can usefully adopt. I'm mostly against swapping up the party (e.g. getting rid of Aloth would add some aggro capacity). Anyway, doesn't sound like there was any trick to it, which actually frustrates me more, not less.