As has been described, the diamonds were brought from the mines to the Cape Town post office in a coach, but they were not kept in the post office longer than it took to make a note of the address, for every week the steamer was waiting in the harbour to convey the precious packet to England. It was, however, absolutely necessary to the success of Worth's plans for that parcel to remain at least one night in the post office in Cape Town. How could he manage that? It was a stiff problem to tackle.

He provided himself with the duplicates of the post office keys, particularly of the safes in which the registered letters were kept. This in itself was a great achievement, but it would take too long to tell the full story of how he ingratiated himself with the postmaster and secured the wax impressions. That was only half the work. It was more important that he should prevent the coach reaching Cape Town in time for the steamer. Worth went over the route taken by the coach, and he was delighted to find a spot where it had to cross a deep stream by means of a ferry. This was the crook's opportunity. He hid in the neighbourhood until it was dark, and then he cut the rope which held the ferry to the bank. When the coach arrived from the diamond fields the ferry had floated a long way down the stream, and when it was recovered and the stream crossed the driver must have known that only by a miracle could he catch the mail that week. The miracle did not happen, and the steamer had already sailed when the coach arrived.

The parcel of diamonds had to be left in the safe at the post office, to which Adam Worth had a perfect key, and when he had first opened the safe he had seen twenty thousands pounds' worth and more of valuables, and had refused to touch them. What was the use of twenty thousand pounds to a man who wanted five times that amount, and who could obtain it by waiting a few days?

The authorities did not regard the delay to the coach as serious, and no extra guard was placed upon the safe in which the parcel reposed, and at the proper time Worth had only to enter the building, open the safe, and take out a collection of diamonds worth a hundred and fifty thousand pounds. It was a theft which can be described as a masterpiece in its own line.

Once in possession of the diamonds Adam Worth was in no hurry to convert them into cash. He knew that everybody leaving the country would be under suspicion, and so he trekked inland, posing as a merchant in ostrich feathers. Before he left Cape Town he buried the diamonds, and it was many weeks ere he and a confederate—who came from America purposely to help to smuggle the diamonds out of the country—returned to recover them. When it was deemed safe Worth and his friend took them to Australia and eventually to England.

This "scoop" did not lessen Worth's appetite for plunder. Other burglaries were quickly organized, and Charles Becker was busily employed forging cheques on banks in England and France. One of these resulted in a friend of Worth's being arrested and convicted, and Worth himself avenged his confederate by robbing the banker who had given evidence of so much money as to bring about his ruin.

But the day came when Adam Worth was caught. He and another thief were robbing the registered mail in Belgium when Worth's comrade made a stupid mistake, and his chief was arrested. He received a sentence of seven years' penal servitude, and he served the time, although he was twice offered his freedom if he would reveal the whereabouts of the Gainsborough he had stolen several years previously. Worth, however, would not trust the word of those who made the offers, and it was not until he emerged from prison, wrecked in health and financially crippled, that he turned to the Pinkertons, the famous American detective agency, and consented on terms to surrender the famous painting.

He was then approaching the sixties, and there can be no doubt that he had lost his nerve. For nearly forty years he had warred against society with only one defeat, but that defeat finished him. With the money the Agnews paid for the return of the picture, "Little Adam "—as he was affectionately known to his friends—provided his family with a home.

All his life he had been devoted to his relatives, and he worshipped his wife and children. They never knew that he was a professional criminal, and even to-day they are unaware of the real character of the husband and parent beside whose grave they mourned nineteen years ago.

Adam Worth had his good points, for his motto was that thieves should be honest amongst themselves. He never resorted to violence, and he never betrayed a friend, and we know that he was good to his family according to his own lights. He was a danger to society, however, and all we can wonder at now is that he was permitted to plunder it with impunity for so many years. But genius will overcome any difficulty, and the genius of Adam Worth was something which raise his doings out of the commonplace.