‘You are sure of that?’

‘Why, of course I’m sure. Really, Mr. Inspector, I’d like to know by what right I am being subjected to this examination.’

‘I shall tell you, Mr. Felix. Scotland Yard has reason to believe there is something wrong about that cask, and an investigation has been ordered. You were naturally the first person to approach, but since the cask turns out not to be yours, we shall——’

‘Not to be mine? What do you mean? Who says it is not mine?’

‘Pardon me, you yourself said so. You have just told me the cask you expected contained statuary. We know the one you received does not contain statuary. Therefore you have got the wrong one.’

Felix paled suddenly, and a look of alarm crept into his eyes. Burnley leant forward and touched him on the knee.

‘You will see for yourself, Mr. Felix, that if this matter is to blow over we must have an explanation of these discrepancies. I am not suggesting you can’t give one. I am sure you can. But if you refuse to do so you will undoubtedly arouse unpleasant suspicions.’

Felix remained silent, and the Inspector did not interrupt his train of thought.

‘Well,’ he said at length, ‘I have really nothing to hide, only one does not like being bluffed. I will tell you, if I can, what you want to know. Satisfy me that you are from Scotland Yard.’

Burnley showed his credentials, and the other said:—