‘Your last words, monsieur, open up possibilities,’ observed Lefarge. ‘Might it not have been some other person altogether? I do not see that we are limited to Felix or Boirac. What about Le Gautier, for instance, or some one we have not yet heard of?’ ‘Quite so, Lefarge. That is undoubtedly a possibility. There are others, François, the butler, for example, into whose actions we must inquire. The possibility of Madame’s having had some former lover must not be forgotten either. But I think we should make up our minds about these two men before we go farther afield.’ ‘There is another point,’ resumed Burnley. ‘The medical evidence shows that only a short time can have elapsed between the time Madame left her house and the murder. We assume, on the hotel manager’s testimony, Felix went to London the morning after the dinner-party. If so, did Madame accompany him? If the former, it points to Felix, and if the latter, to Boirac.’ ‘I think we can deduce that,’ said Lefarge. ‘And how?’ ‘In this way, monsieur. Leave aside for a moment the question of the identity of the murderer, and consider how he got the body into the cask. This cask we have traced fairly well. It was packed in the showrooms in the Boulevard des Capucines, and in it was placed a statue. Then it travelled to Waterloo, and the evidence that it was not tampered with _en route_ is overwhelming. Therefore the body was not in it when it arrived at Waterloo. Then, for twenty-two hours, it disappeared. It reappeared at Charing Cross, for it is too much to suppose there are really two casks in question, and travelled back to Paris, and again it is quite impossible that it could have been interfered with on the journey. At Paris it left the Gare du Nord at 5.20, and disappeared again, but it turned up at the State Railway goods station at 6.10 p.m. the same evening, and returned to London by long sea. On arrival in London it contained the body. It is certain the change was not made during any of the three journeys, therefore it must have been done during these disappearances in London or Paris. ‘Of these disappearances, take that in Paris first. It lasted fifty minutes, and, during that time, the cask was conveyed between the Gare du Nord and the rue Cardinet goods station on a horse cart. How long, monsieur, should that journey have taken?’ ‘About fifty minutes, I should think,’ returned the Chief. ‘I thought so too. That is to say, the whole time of the disappearance is accounted for. We may reckon, also, it would take some considerable time to open, unpack, repack, and close the cask, and it seems to me it would have been utterly impossible for it to have _both_ been opened and to have made that journey in the time. It made the journey, therefore it wasn’t opened. Therefore the body must have been put into it in London.’ ‘Excellent, Lefarge. I believe you are right.’