‘Further, the letter presumed to be written to Felix by Le Gautier could be reasonably accounted for if Felix himself wrote it as a blind to cover his actions with the cask, should such be discovered. It is clear that it was written with some such purpose, as half of it--all about the bet and the test--is entirely untrue, and evidently invented to account for the arrival of the cask. Now, we may take it, Le Gautier did not write that letter. On the other hand, Felix is the only man we have yet found who had sufficient information to do so. ‘Again, we know that a black-bearded man like Felix arranged the journeys of the cask. So far, Felix himself is the only black-bearded man we have found. On the other hand we have two strong points in Felix’s favour. First, we have not been able to prove motive, and second, his surprise when the body was found in the cask appears to have been genuine. We have undoubtedly a good deal of evidence against Felix, but we must note that not only is this evidence circumstantial, but there is also evidence in his favour. ‘The truth is, in my opinion, that we have not yet sufficient information to come to a conclusion, and I fear it will take a lot of work to get it. Firstly, we must definitely prove the authorship of that letter about the lottery and the bet. And here, it seems to me, the tracing of that typewriter is essential. This should not be so difficult, as I think we may take it that the author used the typewriter himself. Therefore, only machines to which the possible writers could have had access need be examined. I will send a man to-morrow to get samples from all the machines Boirac could have used, and if that produces nothing, he can do the same in connection with Le Gautier, Dumarchez, and the other gentlemen whose names we have. I presume, Mr. Burnley, your people will take similar action with regard to Felix?’ ‘I expect they have done so already, but I will write to-night and make sure.’ ‘I consider that a vital point, and the next is almost equally important. We must trace Felix’s movements from the Saturday night till the Thursday evening when the cask containing the body was despatched from Paris. Further, we must ascertain by direct evidence, if Madame travelled with him to London. ‘We must similarly trace the movements of Boirac for the same period. If none of these inquiries help us, other points would be the confronting of Felix and Boirac with the various luggage clerks that did business with the black-bearded man with the cask, in the hope that some of them might possibly identify him. The tracing of the carters who brought the cask to and from the various stations might or might not lead us to the men from whom they got their instructions. An exhaustive inquiry into the past life of Mme. Boirac and all the suspected men is also likely to be necessary. There are several other directions in which we can prosecute inquiries, but I fancy the above should give us all we want.’