“I am quite sure that it might be put to your account,” replied the Earl, “but I scarcely think a jury would be interested. But they might be interested in a certain jar of snuff at present in my possession, and still more interested in the effects of that snuff upon the human system.”

Bernard Taverner’s hand closed convulsively on the edge of the mantelpiece. “I fear I am far from understanding you now, my lord,” he said.

“Are you?” said the Earl. “Have you never wondered why that snuff did not seem to affect Peregrine? I concede you a certain amount of forethought in thinking of a means of poisoning your cousin through a medium on which I am known to be an expert; but you might have considered, I should have thought, that while I might certainly be suspected of having put up the snuff, if its being poisoned were ever discovered, there was also a strong probability that I should be the very person to make that discovery. The circumstance of the mixture being heavily scented was enough to make me suspicious. I found the opportunity, while he was staying at my house, to abstract Peregrine’s snuff-box. It was a little difficult to determine the exact proportions of the three sorts used in making the original mixture, but I believe I succeeded fairly well. At all events, Peregrine detected no difference.”

“His illness in your house!” Miss Taverner cried. “That cough! Good God, is this possible?”

“Oh yes,” said the Earl in his matter-of-fact way. “Scented snuffs have long been a means of poisoning people. You may remember, Miss Taverner, that I found an excuse to send Hinkson up to Brook Street while you were at Worth?”

“Yes,” she said. “You wanted the lease of the house.”

“Not at all. I wanted the rest of Peregrine’s snuff. He had told me where the jar was kept, and Hinkson was easily able to find an opportunity to go up to his dressing-room and exchange the jar for another, similar one, that I had given him. Later, when I was in town again, I visited the principal snuff-shops in the whole of London—a wearing task, but one which repaid me. That particular mixture is not a common one; during the month of December only three four-pound jars of it were sold in town. One was bought at Fribourg and Treyer’s by Lord Edward Bentinck; one was sold by Wishart to the Duke of Sussex; and the third was sold by Pontet, in Pall Mall, to a gentleman who paid for it on the spot, and took it away with him, leaving no name. The description of that gentleman with which the shopman was obliging enough to furnish me was exact enough not only to satisfy me, but also to embolden me to suppose that he would have no great difficulty in recognizing his customer again at need. Do you think a jury would be interested in that, Mr. Taverner?”

Bernard Taverner was still clenching the edge of the mantelpiece. A rather ghastly smile parted his lips. “Interested—but not convinced, Lord Worth.”

“Very well,” said the Earl. “We must pass on then to your next and last attempt. I will do you the justice to say that I don’t think it was one you would have made had not the fixed date of Peregrine’s marriage made it imperative for you to get rid of him at once. You were hard-pressed, Mr. Taverner, and a little too desperate to consider whether I might not be taking a hand in the affair. From the moment of Peregrine’s wedding-day being made known you have not made one movement out of your lodgings that has not been at once reported to me. You suspected Hinkson, but Hinkson was not the person who shadowed you. You have had on your heels a far more noted figure, one who must be as well known as I am myself. You have even thrown him a shilling for holding your horse. Don’t you know my tiger when you see him, Mr. Taverner?”

Bernard Taverner’s eyes were fixed on the Earl’s face. He swallowed once, but said nothing.