"A criminal case?"

"Yes. I was in town on business a year or two ago. I'd come over from Switzerland to renew some leases, and look into a whole batch of tiresome business matters, which my lawyer insisted upon my attending to in my own proper person, very much to my annoyance. While I was in London I dropped into the United Joint-Stock Bank, Temple-Bar Branch, to get circular notes and letters of credit upon their correspondent at Constantinople, and so on. I was not in the office more than five minutes. But while I was talking to one of the clerks at the counter, a man came in, and stood close at my elbow while he handed in a cheque for eighty-seven pounds ten, or some such amount—I know it came very close upon the hundred—received the money, and went out. He looked like a groom out of livery. I left the bank almost immediately after him, and as he turned into a little alley leading down to the Temple. I followed a few paces behind him, for I had business in Paper Buildings. At the bottom of the alley my friend the groom was met by a big black-whiskered man, who seemed to have been waiting for him, for he caught him suddenly by the arm, and said, 'Well, did they do it?' 'Yes,' the other man answered, and began fumbling in his waistcoat-pocket, making a chinking sound as he did so. I had seen him put his money, which he took in notes and gold, into this waistcoat-pocket. 'You needn't have pounced upon me so precious sharp,' he said, rather sulkily; 'I wasn't going to bolt with it, was I?' The black-whiskered man had seen me by this time, and he muttered something to his companion, which evidently meant that he was to hold his tongue, and then dragged him off without further ceremony in the opposite direction to that in which I was going. This was all I saw of the groom or the black-whiskered gentleman on that occasion. I thought their method of cashing a cheque was rather a queer one; but I thought no more about it, until three weeks afterwards, when I went into the Temple-Bar Office of the United Joint-Stock again to complete my Continental arrangements, and was told that the cheque for eighty-seven pounds ten, more or less, which had been cashed in my presence, was a forgery; one of a series of most audacious frauds, perpetrated by a gang whose plans had only just come to light, and none of whom had yet been arrested. 'They've managed to keep themselves dark in the most extraordinary manner,' the clerk told me; 'the cheques are supposed to have been all fabricated by one man, but three or four men have been employed to get hold of the original signatures of our customers, which they have obtained by a complicated system. No two cheques have been presented by the same person,—that's the point that has beaten the detectives; they don't know what sort of men to look for.' 'Don't they?' said I; 'then I think I can assist them in the matter.' Whereupon I told my little story of the black-whiskered gentleman."

Mr. Lansdell paused to take breath, and stole a glance at Isabel. She was pale always,—but she was very pale now, and was watching him with an eager breathless expression.

"Silly romantic little thing," he thought, "to be so intensely absorbed in my story."

"You're getting interesting, Roland," said Lady Gwendoline. "Pray, go on."

"The upshot of the matter was, that at eight o'clock that evening a grave little gentleman in a pepper-and-salt waistcoat came to me at Mivart's, and cross-questioned me closely as to what I knew of the man who had cashed the cheque. 'You think you could recognize this man with the black whiskers?' he said. 'Yes; most decidedly I could.' 'And you'll swear to him, if necessary?' 'With pleasure.' On this the detective departed, and came to me the next day, to tell me that he fancied he was on the track of the man he wanted, but he was at a loss for means of identification. He knew, or thought that he knew, who the man was; but he didn't know the man himself from Adam. The gang had taken fright, and it was believed that they had all started for Liverpool, with the intention of getting off to America by a vessel that was expected to sail at eight o'clock the following morning. The detective had only just got his information, and he came to me for help. The result of the business was, that I put on my great-coat, sent for a cab, and started for Euston Square with my friend the detective, with a view to identifying the black-whiskered gentleman. It was the first adventure I had ever had in my life, and I assure you I most heartily enjoyed it.

"Well, we travelled by the mail, got into Liverpool in the dead of the night, and in the bleak early dawn of the next morning I had the supreme pleasure of pointing out my black-whiskered acquaintance, just as he was going to step on board the steamer that was to convey him to the Atalanta screw-steam-ship, bound for New York. He looked very black at first; but when he found that my companion was altogether en règle, he went away with him, meekly enough, declaring that it was all a mistake, and that it would be easily set right in town. I let the two go back together, and returned by a later train, very well pleased with my adventure.

"I was not so well pleased, however, when I found that I was wanted as a witness at preliminary examinations, and adjourned examinations, and on and off through a trial that lasted four days and a half; to say nothing of being badgered and browbeaten by Old-Bailey practitioners,—who were counsel for the prisoner,—and who asked me if it was my friend's whiskers I recognized, or if I had never seen any other whiskers exactly like his? if I should know him without his whiskers? whether I could swear to the colour of his waistcoat? whether any member of my family had ever been in a lunatic asylum? whether I usually devoted my leisure time to travelling about with detective officers? whether I had been plucked at Oxford? whether I should be able to recognize an acquaintance whom I had only seen once in twenty years? whether I was short-sighted? could I swear I was not short-sighted? would I be kind enough to read a verse or so from a diamond edition of the works of Thomas Moore? and so on. But question me as they would, the prisoner at the bar,—commonly known as Jack the Scribe, alias Jack the Gentleman, alias ever so many other names, which I have completely forgotten,—was the identical person whom I had seen meet the groom at the entrance to the Temple. My evidence was only a single link in a long chain; but I suppose it was eminently damaging to my black-whiskered friend; for, when he and two of his associates had received their sentence—ten years' penal servitude—he turned towards where I was standing, and said:

"'I don't bear any grudge against the gentlemen of the jury, and I don't bear any malice against the judge, though his sentence isn't a light one; but when a languid swell mixes himself up in business that doesn't concern him, he deserves to get it hot and strong. If ever I come out of prison alive, I'll kill you!'"

"He shook his fist at me as he said it. There wasn't much in the words, but there was a good deal in the way in which they were spoken. He tried to say more; but the warders got hold of him and held him down, panting and gasping, and with his face all of a dull livid white. I saw no more of him; but if he does live to come out of prison, I most firmly believe he'll keep his word."