As the paper reported, Piatkoff, “the notorious Peter the Painter of Sidney Street fame,” had been despatched from Moscow to supervise the wholesale execution of these dissidents. Before being executed, they were informed that their crime had been to sully the name of liberty, which their great leader Lenin had re-defined as meaning the self-discipline of the proletariat.

I could not but shudder at this and at the name of the man who had taken up the trade of executioner. He was not the only ghost to haunt the future. Small wonder that when the Soviet Union created its secret service, the “Cheka,” it appointed as chairman the cousin of “The Limping Man,” Yoshka Sokoloff, who had died in the battle of Sidney Street. The new chairman, added The Times report, was “one of the cruellest of Cheka officers during the early years of the Terror.”

V. The Case of the Zimmermann Telegram

1

For many years after the events which I am about to describe, the papers of Sherlock Holmes relating to them were lodged in the most secure bank vault in the City of London. I held one key to the black metal deed-boxes, a member of His Majesty’s Privy Council held the other. Neither of us could open them alone. Among the contents were letters, telegrams and folded parchments tied with pink ribbon, like the confidential brief of King’s Counsel in a leading criminal trial.

Some of these folded briefs bore a few words written by Holmes himself in black ink on their outer surface. One of them was dated 1917 and had the name “Arthur Zimmermann” written upon it with the instruction “Twenty years.” That is the period for which Holmes and I were sworn to secrecy concerning the Great War of 1914-18. Our promise had been given to the First Sea Lord of the Admiralty, at Buckingham Palace, as all Europe careered into the abyss in August 1914. With the passing of time and the consent of His Majesty’s Government the contents of those papers need no longer remain secret.

I had never expected that his records of our war against the German Empire would have survived the domestic bonfires of my friend’s final days. Surely he would have burnt this! Surely, surely he would have destroyed that! But I was quite wrong. There they lie, untouched among other letters and memoranda which he made no effort to conceal.

Perhaps he was satisfied that a certain telegraph message which gives its title to the present story would mean nothing to those who chanced to find it. I have it before me now. It is printed on a Western Union telegram form and it bears the mast-head of that company across the top of its page. It is dated 19 January 1917 and has been wired from Washington to Mexico City, via Galveston, Texas. You may now read it, if you choose. Though it is a little in advance of my narrative, it will illustrate how daunting can be the appearance of a diplomatic cipher from the intelligence service of a great world power. Imagine, if you will, that the lives of millions of people and the fate of the world depend upon your unaided ability to turn the following equation into plain and readable prose within the next two or three hours.

TO GERMAN LEGATION

MEXICO CITY

Charge German Embassy

Washington 19 January 1917

Via Galveston

130 13042 13401 8501 115 3528 416 17214 6491 11310 18147 18222 21560 10247 11518 23677 13605 3494 14936 98092 5905 11311 10392 10271 0302 21290 5161 39695 23571 17504 11269 18278 18101 0317 0228 17694 4473 23264 22200 19452 21589 67893 5569 13918 8958 12137 1333 4725 4458 5905 17166 13851 4458 17149 14471 6706 13850 12224 6929 14991 7382 15857 67893 14218 36477 5870 17533 67893 5870 5454 16102 5217 22801 17138 21001 17388 7446 23638 18222 6719 14331 15021 23845 3156 23552 22096 21604 4797 9497 22464 20855 4377 23610 18140 22260 5905 13347 20420 39689 13732 20667 6929 5275 18507 52262 1340 22049 13339 11265 22295 10439 14814 4178 6992 8784 7632 7357 6926 52262 11267 21100 21272 9346 9559 22464 15874 18502 18500 17857 2188 5376 7381 98092 16127 13486 9350 9220 76038 14219 6144 2831 17920 11347 17142 11264 7667 7762 15099 9110 10482 97556 3569 3670

Bernstorff.

Such is the complete text of this extraordinary document. I will tell you as a clue that no single number corresponds to the same letter of the alphabet on every occasion, though entire words may sometimes be identical. The number “7” may be “a” on one occasion and “q” on another, and “h” on the third. What lies behind this sequence of numbers is an infinitely variable series of ciphers.

Sherlock Holmes was one of the few men on earth who could break the secret of such a transmission within a few hours. His colleagues in Admiralty Intelligence were an unpredictable company of naval officers, classical scholars from the best universities, puzzle-book addicts, eccentrics of many kinds. There were mathematicians, and pioneers of symbolic logic, among them pupils of the late Rev C. L. Dodgson, better known to fame as “Lewis Carroll.” Holmes several times remarked that had we been able to enlist the creator of Alice, we should have given German intelligence “cards, spades and a beating,” from the first day of the war to the last.

Holmes himself was supreme-and he knew it. After the Zimmermann adventure was over and the war had ended, I recall him reclining in his fireside chair during one of his more insufferable meditations, shaking out the match with which he had just lit his briar pipe and saying,

“All things considered, Watson, and though I found much of the work tiresome, I believe it was just as well that I was at hand when this little matter came to the attention of our government.”

He did not intend to be humorous in the least. All the same I laughed. It was too much like the Duke of Wellington recalling the “close-run thing” of the Battle of Waterloo and adding, “Damn it, I do not know that it would have done if I had not been there.”

It would not have done-in either case. Let me now reveal how the career of Sherlock Holmes in the Great War of 1914-18 culminated in that bizarre but momentous battle of the famous telegram.

2

Holmes and I were recruited to this work on the very eve of war. The man responsible was the First Sea Lord at the Admiralty, Sir John Fisher, with whom my friend had worked in breaking Germany ’s peacetime codes. “Jacky Fisher,” as he was popularly known, did nothing so obvious as visiting us in Baker Street. Who was to say whether a passer-by might not be a trained spy, or a German sympathiser in the pay of Tirpitz and his Kriegsmarine?

We knew from our friend Chief Inspector Lestrade, now of the Special Branch at Scotland Yard, that several neutrals in the Baker Street area were under suspicion. They included a Swiss watch-repairer, a Swedish bank courier, even a Spanish restaurateur. Any of these might be the man whose role in the war was to report to Germany on the movements and activities of such men as Sherlock Holmes. Being neutrals, they might inform military intelligence in Berlin, through German embassies in their own countries, without the danger of being hanged or shot in London as traitors.

To foil surveillance of this kind, Sir John Fisher arranged a most unlikely rendezvous with Sherlock Holmes. It was the last Court Ball to be held at Buckingham Palace, before all such good things ended for the duration of the war. The place was well chosen, precisely because it was the type of function which Holmes abominated. So little taste had my friend for what he dismissed as “flummery” that there was an inevitable difficulty as to which ladies we should escort to the occasion. In the end, I was obliged to call upon the services of two astonished spinster cousins from Devonshire.