"Storing. We don't do any work down here- too cold to stay for too long." There's a similar discoloration to the stone on the other side of the wall- and a vague, distant shuffling somewhere. Narcisse stops to frown, staring beyond one of the smaller casks. "What in the Maker's name- If we have rats down here..."

That'd be awful. Unthinkable-

Also really gross, so Narcisse ducks behind Anders, lamp outheld. "You deal with them."