So I went through Bennhold's keep and was about to get to the point where he's waiting in the middle of all of the mines. I find myself low on essence and health, and my pack full, so I decided to pop into town to sell my stuff and heal up. I come back, go through the door with the lever in the beginning, go up to the area and Bennhold is gone and I couldn't find him anywhere. I didn't start any event with him, I have no idea what happened or where he is, any ideas as to how to fix this issue? Obviously, my autosave is useless and I quicksaved after I got back from town...