Burnley was both mystified and somewhat disappointed by the information M. Thomas had given him. He had been really impressed by Lefarge’s discovery that a cask containing sawdust had recently been opened in M. Boirac’s study, though he had not admitted it at the time. His friend’s strongly expressed opinion that either Felix or Boirac, or both, had at that time packed the body in the cask had seemed more and more likely, the longer he had thought it over. There were, however, difficulties in the theory. First, as he had pointed out to Lefarge, there was the personality of François. He felt he would stake his reputation on François’ innocence, and without the butler’s co-operation he did not see how the murder could have been carried through. Then, what possible motive could either of the men named have had for desiring the death of the lady? These and other difficulties he had foreseen, but he had not considered them insuperable. Possibly, in spite of them, they were on the right track. But now all hopes of that were dashed. The explanation of M. Boirac of the presence of the cask was complete, and it had been confirmed by François. This perhaps was not conclusive, but M. Thomas had confirmed it also, and Burnley felt the evidence of its truth was overwhelming. The body could not therefore have been packed in the cask, because it had been returned direct from M. Boirac’s to the showrooms. Reluctantly he felt Lefarge’s theory must be abandoned, and, what was much worse, he had no other to substitute. Another point struck him. If he could find out the hour at which Felix had reached his hotel on the fatal evening, and his condition on arrival, it might confirm or disprove some of the statements they had heard. Therefore, having phoned to the Sûreté and finding he was not required there, he turned his steps again to the Hotel Continental and asked for the manager. ‘I’m afraid I am back to give more trouble, monsieur,’ he said, as they met, ‘but one point has arisen upon which we want some information.’ ‘I shall be pleased to assist you as far as I can.’ ‘We want to know at what hour M. Felix returned to the hotel on the night of Saturday fortnight, the 27th March, and his condition on arrival. Can you get us that?’ ‘I’ll make inquiries. Excuse me a moment.’ The manager was gone a considerable time. When he returned after more than half an hour he shook his head. ‘I can’t find out,’ he said. ‘I’ve asked every one I can think of, but no one knows. One of the hall porters was on duty that evening up till midnight, and he is positive he did not come in before that hour. This is a very reliable man and I think you may take what he says as accurate. The man who relieved him is off duty at present, as is also the night lift boy, and the chamber-maid on late duty in M. Felix’s corridor, but I will interview them later and let you know the result. I presume that will be time enough?’ ‘Certainly,’ and with thanks Burnley withdrew.