"Ah! of course," exclaimed Hutcheson, taking out the brass seal from the safe and examining it minutely. "By Jove!" he cried a second later, "it's been used! They've stamped some document with it. Look! They've used the wrong ink-pad! Can't you see that there's violet upon it, while we always use the black pad!"

I took it in my hand, and there, sure enough, I saw traces of violet ink upon it-the ink of the pad for the date-stamp upon the Consul's table.

"Then some document has been stamped and sealed!" I gasped.

"Yes. And my signature forged to it, no doubt. They've fabricated some certificate or other which, bearing the stamp, seal and signature of the Consulate, will be accepted as a legal document. I wonder what it is?"

"Ah!" I said. "I wonder!" And the three of us looked at each other in sheer bewilderment.

"The reason the papers are all upset is because they were evidently in search of some blank form or other, which they hoped to find," remarked my friend. "As you say, the whole affair was most carefully and ingeniously planned."

We crossed the great sunlit piazza together and entered the Questura, that sun-blanched old palace with its long cool loggia where the sentry paces day and night. The Chief of Police, whom we saw, had no further information. The mysterious yacht had not put in at any Italian port. From him, however, we learned the name of the detective who had seen the two strangers leave Leghorn by the early morning train, and an hour afterwards the police-officer, a black-eyed man short of stature, but of an intelligent type, sat in the Consulate replying to our questions.

"As far as I could make out, signore," he said, "the man was an Englishman, wearing a soft black felt hat and a suit of dark blue serge. He had hair just turning gray, a small dark mustache and rather high cheek-bones. In his hand he carried a small bag of tan leather of that square English shape. He seemed in no hurry, for he was calmly smoking a cigarette as he went across to the ticket office."

"And his companion?" asked the Consul.

"She was in black. Rather tall and slim. Her hair was fair, I noticed, but she wore a black veil which concealed her features."

"Was she young or old?"

"Young-from her figure," replied the police agent. "As she passed me her eyes met mine, and I thought I saw a strange fixed kind of glare in them-the look of a woman filled with some unspeakable horror."

Next day the town of Leghorn awoke to find itself gay with bunting, the Italian and English flags flying side by side everywhere, and the Consular standard flapping over the Consulate in the piazza. In the night the British Mediterranean fleet, cruising down from Malta, had come into the roadstead, and at the signal from the flagship had maneuvered and dropped anchor, forming a long line of gigantic battleships, swift cruisers, torpedo-boat destroyers, torpedo-boats, despatch-boats, and other craft extending for several miles along the coast.

In the bright morning sunlight the sight was both picturesque and imposing, for from every vessel flags were flying, and ever and anon the great battleship of the Admiral made signals which were repeated by all the other vessels, each in turn. Lying still on those calm blue waters was a force which one day might cause nations to totter, the overwhelming force which upheld Britain's right in that oft-disputed sea.

A couple of thousand British sailors were ashore on leave, their white caps conspicuous in the streets everywhere as they walked orderly in threes and fours to inspect the town. In the square outside the Consulate a squad from the flagship were setting up a temporary band-stand, where the ship's band was to play when evening fell, while Hutcheson, perspiring in his uniform, drove with the Admiral to make the calls of courtesy upon the authorities which international etiquette demanded.

Myself, I had taken a boat out to the Bulwark, the great battleship flying the Admiral's flag, and was sitting on deck with my old friend Captain Jack Durnford, of the Royal Marines. Each year when the fleet put into Leghorn we were inseparable, for in long years past, at Portsmouth, we had been close friends, and now he was able to pay me annual visits at my Italian home.

He was on duty that morning, therefore could not get ashore till after luncheon.

"I'll dine with you, of course, to-night, old chap," he said. "And you must tell me all the news. We're in here for six days, and I was half a mind to run home. Two of our chaps got leave from the Admiral and left at three this morning for London-four days in the train and two in town! Gone to see their sweethearts, I suppose."

The British naval officer in the Mediterranean delights to dash across Europe for a day at home if he can get leave and funds will allow. It is generally reckoned that such a trip costs about two pounds an hour while in London. And yet when a man is away from his fiancйe or wife for three whole years, his anxiety to get back, even for a brief day, is easily understood. The youngsters, however, go for mere caprice-whenever they can obtain leave. This is not often, for the Admiral has very fixed views upon the matter.

"Your time's soon up, isn't it?" I remarked, as I lolled back in the easy deck-chair, and gazed away at the white port and its background of purple Apennines.

The dark, good-looking fellow in his smart summer uniform leaned over the bulwark, and said, with a slight sigh, I thought-

"Yes. This is my last trip to Leghorn, I think. I go back in November, and I really shan't be sorry. Three years is a long time to be away from home. You go next week, you say? Lucky devil to be your own master! I only wish I were. Year after year on this deck grows confoundedly wearisome, I can tell you, my dear fellow."

Durnford was a man who had written much on naval affairs, and was accepted as an expert on several branches of the service. The Admiralty do not encourage officers to write, but in Durnford's case it was recognized that of naval topics he possessed a knowledge that was of use, and, therefore, he was allowed to write books and to contribute critical articles to the service magazines. He had studied the relative strengths of foreign navies, and by keeping his eyes always open he had, on many occasions, been able to give valuable information to our naval attachйs at the Embassies. More than once, however, his trenchant criticism of the action of the naval lords had brought upon his head rebukes from head-quarters; nevertheless, so universally was his talent as a naval expert recognized, that to write had never been forbidden him as it had been to certain others.

"How's Hutcheson?" he asked a moment later, turning and facing me.

"Fit as a fiddle. Just back from his month's leave at home. His wife is still up in Scotland, however. She can't stand Leghorn in summer."

"No wonder. It's a perfect furnace when the weather begins to stoke up."

"I go as soon as you've sailed. I only stayed because I promised to act for Frank," I said. "And, by Jove! a funny thing occurred while I was in charge-a real first-class mystery."

"A mystery-tell me," he exclaimed, suddenly interested.

"Well, a yacht-a pirate yacht, I believe it was-called here."

"A pirate! What do you mean?"

"Well, she was English. Listen, and I'll tell you the whole affair. It'll be something fresh to tell at mess, for I know how you chaps get played out of conversation."

"By Jove, yes! Things slump when we get no mail. But go on-I'm listening," he added, as an orderly came up, saluted, and handed him a paper.

"Well," I said, "let's cross to the other side. I don't want the sentry to overhear."

"As you like-but why such mystery?" he asked as we walked together to the other side of the spick-and-span quarter-deck of the gigantic battleship.