Rescue Dara problem/bug
In the cave with Dara, I entered her cell, did not talk to her, and left the cell through a drain. After that, the cell was closed (and inaccessible through the drain as well) and her captor (Maks?) was in an invalid state (as if I had talked with both of them previously). The quest became incompletable. It was long time ago and completing this quest is not important for me, but maybe this problem can be solved for new players. For example, leaving the cell may require a talk with Dara.