“I need not tell you that this undoubted, this fully proved, alibi was a positive bombshell in the stronghold of the prosecution. The most accomplished criminal could not possibly be in two places at once, and though the Ashton Club transgresses in many ways against the gambling laws of our very moral country, yet its members belong to the best, most unimpeachable classes of society. Mr. Ashley had been seen and spoken to at the very moment of the crime by at least a dozen gentlemen whose testimony was absolutely above suspicion.
“Mr. John Ashley’s conduct throughout this astonishing phase of the inquiry remained perfectly calm and correct. It was no doubt the consciousness of being able to prove his innocence with such absolute conclusion that had steadied his nerves throughout the proceedings.
“His answers to the magistrate were clear and simple, even on the ticklish subject of the revolver.
“ ‘I left the club, sir,’ he explained, ‘fully determined to speak with Mr. Cohen alone in order to ask him for a delay in the settlement of my debt to him. You will understand that I should not care to do this in the presence of other gentlemen. I went home for a minute or two—not in order to fetch a revolver, as the police assert, for I always carry a revolver about with me in foggy weather—but in order to see if a very important business letter had come for me in my absence.
“ ‘Then I went out again, and met Mr. Aaron Cohen not far from the Harewood Club. I walked the greater part of the way with him, and our conversation was of the most amicable character. We parted at the top of Portland Place, near the gate of the Square, where the policeman saw us. Mr. Cohen then had the intention of cutting across the Square, as being a shorter way to his own house. I thought the Square looked dark and dangerous in the fog, especially as Mr. Cohen was carrying a large sum of money.
“ ‘We had a short discussion on the subject, and finally I persuaded him to take my revolver, as I was going home only through very frequented streets, and moreover carried nothing that was worth stealing. After a little demur Mr. Cohen accepted the loan of my revolver, and that is how it came to be found on the actual scene of the crime; finally I parted from Mr. Cohen a very few minutes after I had heard the church clock striking a quarter before three. I was at the Oxford Street end of Great Portland Street at five minutes to three, and it takes at least ten minutes to walk from where I was to the Ashton Club.’
“This explanation was all the more credible, mind you, because the question of the revolver had never been very satisfactorily explained by the prosecution. A man who has effectually strangled his victim would not discharge two shots of his revolver for, apparently, no other purpose than that of rousing the attention of the nearest passerby. It was far more likely that it was Mr. Cohen who shot—perhaps wildly into the air, when suddenly attacked from behind. Mr. Ashley’s explanation therefore was not only plausible, it was the only possible one.
“You will understand therefore how it was that, after nearly half an hour’s examination, the magistrate, the police, and the public were alike pleased to proclaim that the accused left the court without a stain upon his character.”
XXX
Friends
“Yes,” interrupted Polly eagerly, since, for once, her acumen had been at least as sharp as his, “but suspicion of that horrible crime only shifted its taint from one friend to another, and, of course, I know—”
“But that’s just it,” he quietly interrupted, “you don’t know—Mr. Walter Hatherell, of course, you mean. So did everyone else at once. The friend, weak and willing, committing a crime on behalf of his cowardly, yet more assertive friend who had tempted him to evil. It was a good theory; and was held pretty generally, I fancy, even by the police.
“I say ‘even’ because they worked really hard in order to build up a case against young Hatherell, but the great difficulty was that of time. At the hour when the policeman had seen the two men outside Park Square together, Walter Hatherell was still sitting in the Harewood Club, which he never left until twenty minutes to two. Had he wished to waylay and rob Aaron Cohen he would not have waited surely till the time when presumably the latter would already have reached home.
“Moreover, twenty minutes was an incredibly short time in which to walk from Hanover Square to Regent’s Park without the chance of cutting across the squares, to look for a man, whose whereabouts you could not determine to within twenty yards or so, to have an argument with him, murder him, and ransack his pockets. And then there was the total absence of motive.”
“But—” said Polly meditatively, for she remembered now that the Regent’s Park murder, as it had been popularly called, was one of those which had remained as impenetrable a mystery as any other crime had ever been in the annals of the police.
The man in the corner cocked his funny birdlike head well on one side and looked at her, highly amused evidently at her perplexity.
“You do not see how that murder was committed?” he asked with a grin.
Polly was bound to admit that she did not.
“If you had happened to have