Stuck in Dark fortress
So, i have only 2 quests left: Kill Kamber and Choose Your Fight. Saved the boys, got kamber's amulet, but I seem to be stuck in Kamber Fortress. On the 1st floor, the corridor to my left (south) is a dead end and on the 2nd floor, i get "no answer" from the doors to my left. Any ideas what am I doing wrong?