"Because," said the old baronet quietly, "I believe I know the man who is guilty."
The ex-captain of territorials stared.
"Good Lord, sir!" he gasped out. "You—you can't mean that?"
"Just that!" A grim brusqueness had crept into the old baronet's voice. "And one of these days I propose to prove it!"
"But, sir"—the ex-captain of territorials in his amazement was still apparently groping out for his bearings—"in that case, the authorities—surely you—"
"They were very polite at Scotland Yard—very!" The old baronet smiled drily again. "That was the quarter to which I referred. Socially and criminologically—if I may be permitted the word—I fear that the Yard regards me from widely divergent angles. But damme, sir"—he became suddenly irascible—"they're too self-sufficient! I am a doddering and interfering old idiot! But nevertheless I am firmly convinced that I am right, and they haven't heard the end of the matter—if I have to devote every penny I've got to substantiating my theory and bringing the guilty man to justice!"
Captain Francis Newcombe coughed in an embarrassed way.
The old baronet reached for his tumbler, and drank generously. It appeared to soothe his feelings.
"Tut, tut!" he said self-chidingly. "I mean every word of that—that is, as to my determination to pursue my own investigations to the end; but perhaps I have not been wholly fair to the Yard. So far, I lack proof; I have only theory. And the Yard too has its theory. It is a very common disease. The theory of the Yard is that the man I believe to be guilty of these crimes of to-day died somewhere around the middle stages of the war."
"By Jove!" Captain Francis Newcombe leaned sharply forward on the arms of his chair. "You don't say!"
The old baronet wrinkled his brows, and was silent for a moment.
"It's quite extraordinary!" he said at last, with a puzzled smile. "I can't for the life of me understand how I got on this subject, for I think we were discussing democracy—but you appear to be interested."
"That is expressing it mildly," said the ex-captain of territorials earnestly. "You can't in common decency refuse me the rest of the story now, Sir Harris."
"There is no reason that I know of why I should," said the old baronet. "Did you ever hear of a man called Shadow Varne?"
Captain Francis Newcombe shook his head.
"No," he said.
"Possibly, then," said the old baronet, "you may remember the robbery at Lord Seeton's place? It was during the war."
"No," said the other thoughtfully. "I can't say I do. I don't think I ever heard of it."
"Well, perhaps you wouldn't," nodded the old baronet. "It happened at a time when, from what you've said, I would imagine you were in the ranks, and—however, it doesn't matter. The point is that the robbery at Lord Seeton's is amazingly like, I could almost say, each and every one of this series of robberies that is taking place to-day. The same exact foreknowledge, the hidden wall safe, or hiding place, or repository, or whatever it might be, that was supposedly known only to the family; the utter absence of any clue; the complete disappearance of—shall we call it?—the loot itself. There is only one difference. In the case of Lord Seeton, the jewels—it was principally a jewel robbery—were eventually recovered. They were found in Paris in the possession of Shadow Varne. But"—the old baronet smiled a little grimly again—"the police were not to blame for that."
Sir Harris Greaves, amateur criminologist, reverted to his tumbler of Scotch and soda.
Captain Francis Newcombe knocked the ash from his cigarette with little taps of his forefinger.
"Yes?" he said.
"It's a bit of a story," resumed the old baronet slowly. "Yes, quite a bit of a story. I do not know how Shadow Varne got to Paris; I simply know that, had he not taken sick, neither he nor the jewels would ever have been found. But perhaps I am getting a little too far ahead. I think I ought to say that Shadow Varne, though he had never actually up to this time been known in a physical sense to the police, had established for himself a widespread and international reputation. His name here, for instance, amongst the criminal element of our own East End was a sort of talisman, something to conjure with, as it were, though no one could ever be found who had seen or could describe the man. I suppose that is how he got the name of Shadow. Some must have known him, of course, but they were tight-lipped; and even these, I am inclined to believe, would never have been able to lay fingers on him, even had they dared. He was at once an inscrutable and diabolical character. I would say, and in this at least Scotland Yard will agree with me, he seemed like some evil, unembodied spirit upon whom one could never come in a tangible sense, but that hovered always in the background, dominating, permeating with his personality the criminal world."
"But if this is so, if no one knew him, or had ever seen him," said the ex-captain of territorials in a puzzled way, "how was he recognised as Shadow Varne in Paris?"
"I am coming to that," said the old baronet quietly. "As you know very well, in those days they were always poking into every rat hole in Paris for draft evaders. That is how they stumbled on Shadow Varne. They dug him out of one of those holes, a very filthy hole, like a rat—like a very sick rat. The man was raving in delirium. That is how they knew they had caught Shadow Varne—because in his delirium he disclosed his identity. And that is how they recovered Lord Seeton's jewels."
"My word!" ejaculated Captain Francis Newcombe. "A bit tough, I call that! My sympathies are almost with the accused!"
"I am afraid I have failed to make you understand the inhuman qualities of the man," said the old baronet tersely. "However, Shadow Varne was even then too much for them—at least temporarily. A few nights later he escaped from the hospital; but he was still too sick a man to stand the pace, and they were too close on his heels. He had possibly, all told, a couple of hours of liberty, running, dodging through the streets of Paris. The chase ended somewhere on the bank of the Seine. He was fired at here as he ran, and though quite a few yards in the lead, he appeared to have been hit, for he was seen to stagger, fall, then recover himself and go on. He refused to halt. They fired and hit him again—or so they believed. He fell to the ground—and rolled over the edge into the water. And that was the last that was ever seen of him."
"My word!" ejaculated the ex-captain of territorials again. "That's a nice end! And I must say, with all due deference to you, Sir Harris, that I can't see anything wrong with Scotland Yard's deduction. I fancy he's dead, fast enough."
"Yes," said the old baronet deliberately, "I imagined you would say so; and I, too, would agree were it not for two reasons. First, had it been any other man than Shadow Varne; and, second, that the body was never recovered."
"But," objected Captain Francis Newcombe, "if, as you believe, the man is still carrying on, having been identified once, he would, wouldn't you say, be recognised again?"
"Not at all!" said the old baronet decidedly. "You must take into account the man's sick and emaciated condition when he was caught, and the subsequent hospital surroundings. Let those who saw him then see the same man to-day, robust, in health, and in an entirely different atmosphere, locality and environment! Recognised? I would lay long odds against it, even leaving out of account the man's known ingenuity for evading recognition."
The ex-captain of territorials nodded thoughtfully.
"Yes," he said, "that is quite possible; but, even granting that he is still alive, I can't see—"
"Why I should believe he is at the bottom of what is going on to-day here in London?" supplied the old baronet quickly. "Perhaps intuition, perhaps the mystery about the man that has interested me from the time I first heard of him in the early years of the war, and which has ever since been a fascinating study with me, has something to do with it. I told you to begin with that my proof was theory. But I believe it. I do not say he is alone in this, or was alone in the Lord Seeton affair; but he