etc. etc'. Had the landlord of that hotel heard of the disappearance of Kershaw through the usual channels, he would have put himself in communication with the police. Sir Arthur Inglewood produced him. How did Sir Arthur Inglewood come on his track?"
"Surely, you don't mean?"
"Point number four," he resumed imperturbably, "Mrs. Kershaw was never requested to produce a specimen of her husband's handwriting. Why? Because the police, clever as you say they are, never started on the right tack. They believed William Kershaw to have been murdered; they looked for William Kershaw.
"On December the 31st, what was presumed to be the body of William Kershaw was found by two lightermen: I have shown you a photograph of the place where it was found. Dark and deserted it is in all conscience, is it not? Just the place where a bully and a coward would decoy an unsuspecting stranger, murder him first, then rob him of his valuables, his papers, his very identity, and leave him there to rot. The body was found in a disused barge which had been moored some time against the wall, at the foot of these steps. It was in the last stages of decomposition, and, of course, could not be identified; but the police would have it that it was the body of William Kershaw.
"It never entered their heads that it was the body of Francis Smethurst, and that William Kershaw was his murderer.
"Ah! it was cleverly, artistically conceived! Kershaw is a genius. Think of it all! His disguise! Kershaw had a shaggy beard, hair, and moustache. He shaved up to his very eyebrows! No wonder that even his wife did not recognize him across the court; and remember she never saw much of his face while he stood in the dock. Kershaw was shabby, slouchy, he stooped. Smethurst, the millionaire, might have served in the Prussian army.
"Then that lovely trait about going to revisit the Torriani Hotel. Just a few days' grace, in order to purchase moustache and beard and wig, exactly similar to what he had himself shaved off. Making up to look like himself! Splendid! Then leaving the pocket-book behind! He! he! he! Kershaw was not murdered! Of course not. He called at the Torriani Hotel six days after the murder, whilst Mr. Smethurst, the millionaire, hobnobbed in the park with duchesses! Hang such a man! Fie!"
He fumbled for his hat. With nervous, trembling fingers he held it deferentially in his hand whilst he rose from the table. Polly watched him as he strode up to the desk, and paid twopence for his glass of milk and his bun. Soon he disappeared through the shop, whilst she still found herself hopelessly bewildered, with a number of snap-shot photographs before her, still staring at a long piece of string, smothered from end to end in a series of knots, as bewildering, as irritating, as puzzling as the man who had lately sat in the corner.
CHAPTER IV
THE ROBBERY IN PHILLIMORE TERRACE
Whether Miss Polly Burton really did expect to see the man in the corner that Saturday afternoon, 'twere difficult to say; certain it is that when she found her way to the table close by the window and realized that he was not there, she felt conscious of an overwhelming sense of disappointment. And yet during the whole of the week she had, with more pride than wisdom, avoided this particular A.B.C. shop.
"I thought you would not keep away very long," said a quiet voice close to her ear.
She nearly lost her balance—where in the world had he come from? She certainly had not heard the slightest sound, and yet there he sat, in the corner, like a veritable Jack-in-the-box, his mild blue eyes staring apologetically at her, his nervous fingers toying with the inevitable bit of string.
The waitress brought him his glass of milk and a cheese-cake. He ate it in silence, while his piece of string lay idly beside him on the table. When he had finished he fumbled in his capacious pockets, and drew out the inevitable pocket-book.
Placing a small photograph before the girl, he said quietly:
"That is the back of the houses in Phillimore Terrace, which overlook Adam and Eve Mews."
She looked at the photograph, then at him, with a kindly look of indulgent expectancy.
"You will notice that the row of back gardens have each an exit into the mews. These mews are built in the shape of a capital F. The photograph is taken looking straight down the short horizontal line, which ends, as you see, in a cul-de-sac. The bottom of the vertical line turns into Phillimore Terrace, and the end of the upper long horizontal line into High Street, Kensington. Now, on that particular night, or rather early morning, of January 15th, Constable D 21, having turned into the mews from Phillimore Terrace, stood for a moment at the angle formed by the long vertical artery of the mews and the short horizontal one which, as I observed before, looks on to the back gardens of the Terrace houses, and ends in a cul-de-sac.
"How long D 21 stood at that particular corner he could not exactly say, but he thinks it must have been three or four minutes before he noticed a suspicious-looking individual shambling along under the shadow of the garden walls. He was working his way cautiously in the direction of the cul-de-sac, and D 21, also keeping well within the shadow, went noiselessly after him.
"He had almost overtaken him—was, in fact, not more than thirty yards from him—when from out of one of the two end houses—No. 22, Phillimore Terrace, in fact—a man, in nothing but his night-shirt, rushed out excitedly, and, before D 21 had time to intervene, literally threw himself upon the suspected individual, rolling over and over with him on the hard cobble-stones, and frantically shrieking, 'Thief! Thief! Police!'
"It was some time before the constable succeeded in rescuing the tramp from the excited grip of his assailant, and several minutes before he could make himself heard.
"'There! there! that'll do!' he managed to say at last, as he gave the man in the shirt a vigorous shove, which silenced him for the moment. 'Leave the man alone now, you mustn't make that noise this time o' night, wakin' up all the folks.' The unfortunate tramp, who in the meanwhile had managed to get onto his feet again, made no attempt to get away; probably he thought he would stand but a poor chance. But the man in the shirt had partly recovered his power of speech, and was now blurting out jerky, half—intelligible sentences:
"'I have been robbed—robbed—I—that is—my master—Mr. Knopf. The desk is open—the diamonds gone—all in my charge—and—now they are stolen! That's the thief—I'll swear—I heard him—not three minutes ago—rushed downstairs—the door into the garden was smashed—I ran across the garden—he was sneaking about here still—Thief! Thief! Police! Diamonds! Constable, don't let him go—I'll make you responsible if you let him go—'
"'Now then—that'll do!' admonished D 21 as soon as he could get a word in, 'stop that row, will you?'
"The man in the shirt was gradually recovering from his excitement.
"'Can I give this man in charge?' he asked.
"'What for?'
"'Burglary and housebreaking. I heard him, I tell you. He must have Mr. Knopf's diamonds about him at this moment.'
"'Where is Mr. Knopf?'
"'Out of town,' groaned the man in the shirt. 'He went to Brighton last night, and left me in charge, and now this thief has been and—'
"The tramp shrugged his shoulders and suddenly, without a word, he quietly began taking off his coat and waistcoat. These he handed across to the constable. Eagerly the man in the shirt fell on them, and turned the ragged pockets inside out. From one of the windows a hilarious voice made some facetious remark, as the tramp with equal solemnity began divesting himself of his nether garments.
"'Now then, stop that nonsense,' pronounced D 21 severely, 'what were you doing here this time o' night, anyway?'
"'The streets o' London is free to the public, ain't they?' queried the tramp.
"'This don't lead nowhere, my man.'
"'Then I've lost my way, that's all,' growled the man surlily, 'and p'raps you'll let me get along now.'
"By this time a couple of constables had appeared upon the scene. D 21 had no intention of losing sight of his friend the tramp, and the man in the shirt had again made a dash for the latter's collar at the bare idea that he should be allowed to 'get along.'
"I