"That done, I went down-stairs again, bade the caretaker good-morning, and got into my cab. From Belgrave Square I drove to the shop of the pawn-broker whom you told me you had discovered was out of town. His assistant inquired my business, and was anxious to do what he could for me. I told him, however, that I must see his master personally, as it was about the sale of some diamonds I had had left me. I pretended to be annoyed that he was not at home, and muttered to myself, so that the man could hear, something about its meaning a journey to Amsterdam.

"Then I limped out of the shop, paid off my cab, and, walking down a by-street, removed my moustache, and altered my appearance by taking off my great-coat and muffler. A few streets further on I purchased a bowler hat in place of the old-fashioned topper I had hitherto been wearing, and then took a cab from Piccadilly and came home."

"You have fulfilled my instructions admirably," said Carne. "And if the business comes off, as I expect it will, you shall receive your usual percentage. Now I must be turned into Klimo and be off to Belgrave Square to put His Grace of Wiltshire upon the track of this burglar."

Before he retired to rest that night Simon Carne took something, wrapped in a red silk handkerchief, from the capacious pocket of the coat Klimo had been wearing a few moments before. Having unrolled the covering, he held up to the light the magnificent necklace which for so many years had been the joy and pride of the ducal house of Wiltshire. The electric light played upon it, and touched it with a thousand different hues.

"Where so many have failed," he said to himself, as he wrapped it in the handkerchief again and locked it in his safe, "it is pleasant to be able to congratulate oneself on having succeeded. It is without its equal, and I don't think I shall be overstepping the mark if I say that I think when she receives it Liz will be glad she lent me the money."

Next morning all London was astonished by the news that the famous Wiltshire diamonds had been stolen, and a few hours later Carne learnt from an evening paper that the detectives who had taken up the case, upon the supposed retirement from it of Klimo, were still completely at fault.

That evening he was to entertain several friends to dinner. They included Lord Amberley, Lord Orpington, and a prominent member of the Privy Council, Lord Amberley arrived late, but filled to overflowing with importance. His friends noticed his state, and questioned him.

"Well, gentlemen," he answered, as he took up a commanding position upon the drawing-room hearth-rug, "I am in a position to inform you that Klimo has reported upon the case, and the upshot of it is that the Wiltshire Diamond Mystery is a mystery no longer."

"What do you mean?" asked the others in a chorus.

"I mean that he sent in his report to Wiltshire this afternoon, as arranged. From what he said the other night, after being alone in the room with the empty jewel case and a magnifying glass for two minutes or so, he was in a position to describe the modus operandi, and, what is more, to put the police on the scent of the burglar."