The very shadows were sinister.

Men passed in and out of the hotel.

Once old Dorn came to the door and peered all around.

Kurt observed that there was a dark side entrance to this hotel.
Presently Neuman returned to the desk and said something to old Dorn, who shook his head emphatically, and then threw himself into a chair, in a brooding posture that Kurt knew well.

He had seen it so often that he knew it had to do with money.