There’s a good chance the party will meet Drelnza tonight, and they’ll have to be lucky and good to make it out of there alive. There are only four party members left. If any of them get charmed, that’s probably a TPK. With her sword Drelnza has a THAC0 of 2, and gets two attacks/round doing 2d4+8 with a special ability that will paralyze LG clerics (Corbek). The setting favors her too. The party will need excellent tactics and a dose of luck. Of course they could also blunder around for four hours and get nothing done or get themselves knocked off in much less heroic fashion.