Specifically, I'm in the throne chamber, I take the secret door to the left of the base of the grand staircase, I've checked all the obvious rooms, but there are rats squaking through the walls and I continue to hear them as I climb the spiral stairs. It's driving me crazy knowing there could be a stash of treasure or a pickable pocket hidden away somewhere, and the last thing anybody needs is a crazy Dunmer Nightblade hiding out in some dank dungeon somewhere; they'll be putting a quest out on me soon! But I don't want to leave just yet because I know the dungeon respawns once you step outside. Anybody know if there is a secret entrance near where I mentioned?
P.S.: Is it normal to be attacked by a wraith with an insane plethora of magical attacks while sleeping in this dungeon? Because it's happened to me a few times.
P.P.S.: Yes I'm certain it's not an environmental sound effect.