I've reached the interior of the Gargoyle's Maze where I'm supposed to fight some skeleton mages and collect a key that one is carrying. I've killed them all several times and no key can be found; the exit door remains locked. A few seconds after they're all dead, they all come back again, and the cycle goes on endlessly. Somebody on our side keeps saying "Can you please just stay dead?"
Has anybody else had this problem? Am I missing something?