"I would give a hundred pounds," he whispered, "if I could place in his hands at this moment a new story of Sherlock Holmes--a thousand pounds,"

he added, wildly--"five thousand pounds!"

The American observed the speaker sharply, as though the words bore to him some special application, and then, at an idea which apparently had but just come to him, smiled, in great embarra.s.sment.

Sir Andrew ceased reading, but, as though still under the influence of the book, sat looking, blankly, into the open fire. For a brief s.p.a.ce, no one moved until the baronet withdrew his eyes and, with a sudden start of recollection, felt, anxiously, for his watch. He scanned its face eagerly, and scrambled to his feet.

The voice of the American instantly broke the silence in a high, nervous accent.

"And yet Sherlock Holmes himself," he cried, "could not decipher the mystery which to-night baffles the police of London."

At these unexpected words, which carried in them something of the tone of a challenge, the gentlemen about the table started as suddenly as though the American had fired a pistol in the air, and Sir Andrew halted, abruptly, and stood observing him with grave surprise.

The gentleman with the black pearl was the first to recover.

"Yes, yes," he said, eagerly, throwing himself across the table. "A mystery that baffles the police of London. I have heard nothing of it.

Tell us at once, pray do--tell us at once."

The American flushed uncomfortably, and picked, uneasily, at the table-cloth.

"No one but the police has heard of it," he murmured, "and they only through me. It is a remarkable crime, to which, unfortunately, I am the only person who can bear witness. Because I am the only witness, I am, in spite of my immunity as a diplomat, detained in London by the authorities of Scotland Yard. My name," he said, inclining his head, politely, "is Sears, Lieutenant Ripley Sears, of the United States Navy, at present Naval Attache to the Court of Russia. Had I not been detained to-day by the police, I would have started this morning for Petersburg."

The gentleman with the black pearl interrupted with so p.r.o.nounced an exclamation of excitement and delight that the American stammered and ceased speaking.

"Do you hear, Sir Andrew?" cried the member of Parliament, jubilantly.

"An American diplomat halted by our police because he is the only witness of a most remarkable crime--THE most remarkable crime, I believe you said, sir," he added, bending eagerly toward the naval officer, "which has occurred in London in many years."

The American moved his head in a.s.sent, and glanced at the two other members. They were looking, doubtfully, at him, and the face of each showed that he was greatly perplexed.

Sir Andrew advanced to within the light of the candles and drew a chair toward him.

"The crime must be exceptional, indeed," he said, "to justify the police in interfering with a representative of a friendly power. If I were not forced to leave at once, I should take the liberty of asking you to tell us the details."

The gentleman with the pearl pushed the chair toward Sir Andrew, and motioned him to be seated.

"You cannot leave us now," he exclaimed. "Mr. Sears is just about to tell us of this remarkable crime."

He nodded, vigorously, at the naval officer and the American, after first glancing, doubtfully, toward the servants at the far end of the room, and leaned forward across the table. The others drew their chairs nearer and bent toward him. The baronet glanced, irresolutely, at his watch, and, with an exclamation of annoyance, snapped down the lid.

"They can wait," he muttered. He seated himself quickly, and nodded at Lieutenant Sears.

"If you will be so kind as to begin, sir," he said, impatiently.

"Of course," said the American, "you understand that I understand that I am speaking to gentlemen. The confidences of this Club are inviolate.

Until the police give the facts to the public press, I must consider you my confederates. You have heard nothing, you know no one connected with this mystery. Even I must remain anonymous."

The gentlemen seated around him nodded gravely.

"Of course," the baronet a.s.sented, with eagerness, "of course."

"We will refer to it," said the gentleman with the black pearl, "as 'The Story of the Naval Attache.'"

"I arrived in London two days ago," said the American, "and I engaged a room at the Bath Hotel. I know very few people in London, and even the members of our emba.s.sy were strangers to me. But in Hong Kong I had become great pals with an officer in your navy, who has since retired, and who is now living in a small house in Rutland Gardens, opposite the Knightsbridge Barracks. I telegraphed him that I was in London, and yesterday morning I received a most hearty invitation to dine with him the same evening at his house. He is a bachelor, so we dined alone and talked over all our old days on the Asiatic Station and of the changes which had come to us since we had last met there. As I was leaving the next morning for my post at Petersburg, and had many letters to write, I told him, about ten o'clock, that I must get back to the hotel, and he sent out his servant to call a hansom.

"For the next quarter of an hour, as we sat talking, we could hear the cab-whistle sounding, violently, from the doorstep, but apparently with no result.

"'It cannot be that the cabmen are on strike,' my friend said, as he rose and walked to the window.

"He pulled back the curtains and at once called to me.

"'You have never seen a London fog, have you?' he asked. 'Well, come here. This is one of the best, or, rather, one of the worst, of them.' I joined him at the window, but I could see nothing. Had I not known that the house looked out upon the street I would have believed that I was facing a dead wall. I raised the sash and stretched out my head, but still I could see nothing. Even the light of the street-lamps, opposite, and in the upper windows of the barracks, had been smothered in the yellow mist. The lights of the room in which I stood penetrated the fog only to the distance of a few inches from my eyes.

"Below me the servant was still sounding his whistle, but I could afford to wait no longer, and told my friend that I would try and find the way to my hotel on foot. He objected, but the letters I had to write were for the Navy Department, and, besides, I had always heard that to be out in a London fog was the most wonderful experience, and I was curious to investigate one for myself.

"My friend went with me to his front door, and laid down a course for me to follow. I was first to walk straight across the street to the brick wall of the Knightsbridge Barracks. I was then to feel my way along the wall until I came to a row of houses set back from the sidewalk. They would bring me to a cross street. On the other side of this street was a row of shops which I was to follow until they joined the iron railings of Hyde Park. I was to keep to the railings until I reached the gates at Hyde Park Corner, where I was to lay a diagonal course across Piccadilly, and tack in toward the railings of Green Park. At the end of these railings, going east, I would find the Walsingham, and my own hotel.

"To a sailor the course did not seem difficult, so I bade my friend good-night and walked forward until my feet touched the paving. I continued upon it until I reached the curbing of the sidewalk. A few steps further, and my hands struck the wall of the barracks. I turned in the direction from which I had just come, and saw a square of faint light cut in the yellow fog. I shouted, 'All right,' and the voice of my friend answered, 'Good luck to you.' The light from his open door disappeared with a bang, and I was left alone in a dripping, yellow darkness. I have been in the Navy for ten years, but I have never known such a fog as that of last night, not even among the icebergs of Behring Sea. There one at least could see the light of the binnacle, but last night I could not even distinguish the hand by which I guided myself along the barrack-wall. At sea a fog is a natural phenomenon. It is as familiar as the rainbow which follows a storm, it is as proper that a fog should spread upon the waters as that steam shall rise from a kettle. But a fog which springs from the paved streets, that rolls between solid house-fronts, that forces cabs to move at half speed, that drowns policemen and extinguishes the electric lights of the music-hall, that to me is incomprehensible. It is as out of place as a tidal wave on Broadway.

"As I felt my way along the wall, I encountered other men who were coming from the opposite direction, and each time when we hailed each other I stepped away from the wall to make room for them to pa.s.s. But the third time I did this, when I reached out my hand, the wall had disappeared, and the further I moved to find it the further I seemed to be sinking into s.p.a.ce. I had the unpleasant conviction that at any moment I might step over a precipice. Since I had set out, I had heard no traffic in the street, and now, although I listened some minutes, I could only distinguish the occasional footfalls of pedestrians. Several times I called aloud, and once a jocular gentleman answered me, but only to ask me where I thought he was, and then even he was swallowed up in the silence. Just above me I could make out a jet of gas which I guessed came from a street-lamp, and I moved over to that, and, while I tried to recover my bearings, kept my hand on the iron post. Except for this nicker of gas, no larger than the tip of my finger, I could distinguish nothing about me. For the rest, the mist hung between me and the world like a damp and heavy blanket.

"I could hear voices, but I could not tell from whence they came, and the sc.r.a.pe of a foot, moving cautiously, or a m.u.f.fled cry as someone stumbled, were the only sounds that reached me.

"I decided that until someone took me in I had best remain where I was, and it must have been for ten minutes that I waited by the lamp, straining my ears and hailing distant footfalls. In a house near me some people were dancing to the music of a Hungarian band. I even fancied I could hear the windows shake to the rhythm of their feet, but I could not make out from which part of the compa.s.s the sounds came. And sometimes, as the music rose, it seemed close at my hand, and, again, to be floating high in the air above my head. Although I was surrounded by thousands of householders, I was as completely lost as though I had been set down by night in the Sahara Desert. There seemed to be no reason in waiting longer for an escort, so I again set out, and at once b.u.mped against a low, iron fence. At first I believed this to be an area railing, but, on following it, I found that it stretched for a long distance, and that it was pierced at regular intervals with gates. I was standing, uncertainly, with my hand on one of these, when a square of light suddenly opened in the night, and in it I saw, as you see a picture thrown by a biograph in a darkened theatre, a young gentleman in evening dress, and, back of him, the lights of a hall. I guessed, from its elevation and distance from the sidewalk, that this light must come from the door of a house set back from the street, and I determined to approach it and ask the young man to tell me where I was. But, in fumbling with the lock of the gate, I instinctively bent my head, and when I raised it again the door had partly closed, leaving only a narrow shaft of light. Whether the young man had re-entered the house, or had left it I could not tell, but I hastened to open the gate, and as I stepped forward I found myself upon an asphalt walk. At the same instant there was the sound of quick steps upon the path, and someone rushed past me. I called to him, but he made no reply, and I heard the gate click and the footsteps hurrying away upon the sidewalk.

"Under other circ.u.mstances the young man's rudeness, and his recklessness in dashing so hurriedly through the mist, would have struck me as peculiar, but everything was so distorted by the fog that at the moment I did not consider it. The door was still as he had left it, partly open. I went up the path, and, after much fumbling, found the k.n.o.b of the door-bell and gave it a sharp pull. The bell answered me from a great depth and distance, but no movement followed from inside the house, and, although I pulled the bell again and again, I could hear nothing save the dripping of the mist about me. I was anxious to be on my way, but unless I knew where I was going there was little chance of my making any speed, and I was determined that until I learned my bearings I would not venture back into the fog. So I pushed the door open and stepped into the house.

"I found myself in a long and narrow hall, upon which doors opened from either side. At the end of the hall was a staircase with a bal.u.s.trade which ended in a sweeping curve. The bal.u.s.trade was covered with heavy, Persian rugs, and the walls of the hall were also hung with them. The door on my left was closed, but the one nearer me on the right was open, and, as I stepped opposite to it, I saw that it was a sort of reception or waiting-room, and that it was empty. The door below it was also open, and, with the idea that I would surely find someone there, I walked on up the hall. I was in evening dress, and I felt I did not look like a burglar, so I had no great fear that, should I encounter one of the inmates of the house, he would shoot me on sight. The second door in the hall opened into a dining-room. This was also empty. One person had been dining at the table, but the cloth had not been cleared away, and a flickering candle showed half-filled winegla.s.ses and the ashes of cigarettes. The greater part of the room was in complete darkness.

"By this time I had grown conscious of the fact that I was wandering about in a strange house, and that, apparently, I was alone in it.

The silence of the place began to try my nerves, and in a sudden, unexplainable panic I started for the open street. But as I turned, I saw a man sitting on a bench, which the curve of the bal.u.s.trade had hidden from me. His eyes were shut, and he was sleeping soundly.

"The moment before I had been bewildered because I could see no one, but at sight of this man I was much more bewildered.

"He was a very large man, a giant in height, with long, yellow hair, which hung below his shoulders. He was dressed in a red silk shirt, that was belted at the waist and hung outside black velvet trousers, which, in turn, were stuffed into high, black boots. I recognized the costume at once as that of a Russian servant, but what a Russian servant in his native livery could be doing in a private house in Knightsbridge was incomprehensible.

"I advanced and touched the man on the shoulder, and, after an effort, he awoke, and, on seeing me, sprang to his feet and began bowing rapidly, and making deprecatory gestures. I had picked up enough Russian in Petersburg to make out that the man was apologizing for having fallen asleep, and I also was able to explain to him that I desired to see his master.

"He nodded vigorously, and said, 'Will the Excellency come this way? The Princess is here.'

"I distinctly made out the word 'princess,' and I was a good deal embarra.s.sed. I had thought it would be easy enough to explain my intrusion to a man, but how a woman would look at it was another matter, and as I followed him down the hall I was somewhat puzzled.

"As we advanced, he noticed that the front door was standing open, and with an exclamation of surprise, hastened toward it and closed it. Then he rapped twice on the door of what was apparently the drawing-room.

There was no reply to his knock, and he tapped again, and then, timidly, and cringing subserviently, opened the door and stepped inside. He withdrew himself at once and stared stupidly at me, shaking his head.

"'She is not there,' he said. He stood for a moment, gazing blankly through the open door, and then hastened toward the dining-room. The solitary candle which still burned there seemed to a.s.sure him that the room also was empty. He came back and bowed me toward the drawing-room.

'She is above,' he said; 'I will inform the Princess of the Excellency's presence.'

"Before I could stop him, he had turned and was running up the staircase, leaving me alone at the open door of the drawing-room. I decided that the adventure had gone quite far enough, and if I had been able to explain to the Russian that I had lost my way in the fog, and only wanted to get back into the street again, I would have left the house on the instant.

"Of course, when I first rang the bell of the house I had no other expectation than that it would be answered by a parlor-maid who would direct me on my way. I certainly could not then foresee that I would disturb a Russian princess in her boudoir, or that I might be thrown out by her athletic bodyguard. Still, I thought I ought not now to leave the house without making some apology, and, if the worst should come, I could show my card. They could hardly believe that a member of an Emba.s.sy had any designs upon the hat-rack.