It was half-past four; M. Desmalions, the Prefect of Police, was not yet back at the office. His private secretary laid on the desk a bundle of letters and reports which he had annotated for his chief, rang the bell and said to the messenger who entered by the main door. The messenger went out. The secretary was turning toward the small door that led to his room, when the main door opened once more and admitted a man who stopped and leaned swaying over the back of a chair.