‘I thank you,’ said Burnley. ‘The matter is rather a serious one. It is briefly this. On Monday last—four days ago—a cask arrived in London from Paris. Some circumstances with which I need not trouble you aroused the suspicions of the police, with the result that the cask was seized and opened. In it were found, packed in sawdust, two things, firstly, £52 10s. in English gold, and secondly the body of a youngish woman, evidently of good position, and evidently murdered by being throttled by a pair of human hands.’

‘Horrible!’ ejaculated the little man.

‘The cask was of very peculiar construction, the woodwork being at least twice as heavy as that of an ordinary wine cask and secured by strong iron bands. And, sir, the point that has brought us to you is that your firm’s name was stencilled on it after the words “Return to,” and it was addressed on one of your firm’s labels.’

The little man sprang to his feet.

‘Our cask? Our label?’ he cried, in evident astonishment. ‘Do I understand you to say, sir, that the cask containing this body was sent out by us?’

‘No, sir,’ returned Burnley, ‘I did not say that. I simply say that it arrived bearing your name and label. I am in total ignorance of how or when the body was put in. That is what I am over from London to investigate.’

‘But the thing is utterly incredible,’ said M. Thévenet, pacing up and down the room. ‘No, no,’ he added, with a wave of his hand as Burnley would have spoken, ‘I don’t mean that I doubt your word. But I cannot but feel that there must be a terrible mistake.’

‘It is only right to add, sir,’ continued Burnley, ‘that I did not myself see the label. But it was seen by the men of the carrying company, and especially by one of their clerks who examined it carefully after suspicion had been aroused. The label was afterwards destroyed by Felix, to whom the cask was addressed.’

‘Felix, Felix, the name seems familiar. What was the full name and address?’

‘M. Léon Felix, 141 West Judd Street, Tottenham Court Road, London, W.C.’