'Why didn't they arrest him?'

'Because the evidence against him is so small, and the improbability of his having committed the crime is so great.'

'What is the evidence against him?'

His lordship spoke with the dry deliberation of an aged solicitor.

'The robbery was committed on the night of October the fifth. All day there had been a heavy rain, and the grounds were wet. For reasons into which I do not care to enter, John Haddon was familiar with this house, and with our grounds. He was well known to my servants, and, unfortunately, popular with them, for he is an openhanded spendthrift. The estate of his elder brother, Lord Steffenham, adjoins my own to the west, and Lord Steffenham's house is three miles from where we sit. On the night of the fifth a ball was given in the mansion of Lord Steffenham, to which, of course, my niece and myself were invited, and which invitation we accepted. I had no quarrel with the elder brother. It was known to John Haddon that my niece intended to wear her necklace of emeralds. The robbery occurred at a time when most crimes of that nature are committed in country houses, namely, while we were at dinner, an hour during which the servants are almost invariably in the lower part of the house. In October the days are getting short. The night was exceptionally dark, for, although the rain had ceased, not a star was visible. The thief placed a ladder against the sill of one of the upper windows, opened it, and came in. He must have been perfectly familiar with the house, for there are evidences that he went direct to the boudoir where the jewel case had been carelessly left on my niece's dressing table when she came down to dinner. It had been taken from the strong room about an hour before. The box was locked, but, of course, that made no difference. The thief wrenched the lid off, breaking the lock, stole the necklace, and escaped by the way he came.'

'Did he leave the window open, and the ladder in place?'

'Yes.'

'Doesn't that strike you as very extraordinary?'

'No. I do not assert that he is a professional burglar, who would take all the precautions against the discovery that might have been expected from one of the craft. Indeed, the man's carelessness in going straight across the country to his brother's house, and leaving footsteps in the soft earth, easily traceable almost to the very boundary fence, shows he is incapable of any serious thought.'

'Is John Haddon rich?'