We picked her pocket for the cure and circlet, knocked her out, then ran away. I think you can also just kill your ally, not sure haven't tried it. It's possible to collect the circlet before this in one of the small side quests in camp, so you don't *have* to fight her, the way to make the cure is in a book right outside the room you get locked in. I think the situation sucks but isn't "broken" because at worst you can force your way out by killing the girl, and there are a couple of circumstances where you can avoid that with different sequencing. It's very dndesque to not be able to have everything at the last moment, and the game gives you plenty of warning that going to her isn't a great solution.
Last edited by Bromnath; 07/10/20 05:44 PM.