that you do!" he managed to say at last. "I had him—I had the Vanishing Cracksman in my blessed paws and then went and let that French hussy—— But look here; I say, now, how do you know it was him? Nobody can go by his looks; so how do you know?"

"Know, you footler!" growled Smathers disgustedly. "Why shouldn't I know when I've been after him ever since he left Scotland Yard half an hour ago?"

"Left what? My hat! You ain't a-going to tell me that he's been there? When? Why? What for?"

"To leave one of his blessed notices, the dare-devil. What a detective he'd 'a' made, wouldn't he, if he'd only a-turned his attention that way, and been on the side of the law instead of against it? He walked in bold as brass, sat down and talked with the superintendent over some cock-and-bull yarn about a 'Black Hand' letter that he said had been sent to him, and asked if he couldn't have police protection whilst he was in town. It wasn't until after he'd left that the superintendent he sees a note on the chair where the blighter had been sitting, and when he opened it, there it was in black and white, something like this:

"That's how I know, dash you! Superintendent sent me out after him, hot foot; and after a bit I picked him up in the Strand, toddling along with that French hussy as cool as you please. But, blow him! he must have eyes all round his head, for he saw me just as soon as I saw him, and he and Frenchy separated like a shot. She hopped into a taxi and flew off in one direction; he dived into the crowd and bolted in another, and before you could say Jack Robinson he was doubling and twisting, jumping into cabs and jumping out again—all to gain time, of course, for the woman to do what he'd put her up to doing

—and leading me the devil's own chase through the devil's own tangles till he was ready to bunk for the Embankment. And you let him go, you blooming footler! Had him and let him go, and chucked away a third of £200 for the price of half a quid!"

And long after Smathers and Petrie had left him, the wondering crowd had dispersed, and point duty at "Dead Man's Corner" was just point duty again and nothing more, P. C. Collins stood there, chewing the cud of bitter reflection over those words and trying to reckon up just how many pounds and how much glory had been lost to him.

II

"But, damme, sir, the thing's an outrage! I don't mince my words, Mr. Narkom. I say plump and plain the thing's an outrage, a disgrace to the police, an indignity upon the community at large; and for Scotland Yard to permit itself to be defied, bamboozled, mocked at in this appalling fashion by a paltry burglar——"

"Uncle, dear, pray don't excite yourself in this manner. I am quite sure that if Mr. Narkom could prevent the things——"

"Hold your tongue, Ailsa. I will not be interfered with! It's time that somebody spoke out plainly and let this establishment know what the public has a right to expect of it. What do I pay my rates and taxes for—and devilish high ones they are, too, b'gad—if it's not to maintain law and order and the proper protection of property? And to have the whole blessed country terrorized, the police defied, and people's houses invaded with impunity by a gutter-bred brute of a cracksman is nothing short of a scandal and a shame! Call this sort of tomfoolery being protected by the police? God bless my soul! one might as

well be in the charge of a parcel of doddering old women and be done with it!"

It was an hour and a half after that exciting affair at "Dead Man's Corner." The scene was Superintendent Narkom's private room at headquarters, the dramatis personæ, Mr. Maverick Narkom himself, Sir Horace Wyvern, and Miss Ailsa Lorne, his niece, a slight, fair-haired, extremely attractive girl of twenty. She was the only and orphaned daughter of a much-loved sister, who, up till a year ago, had known nothing more exciting in the way of "life" than that which is to be found in a small village in Suffolk and falls to the lot of an underpaid vicar's only child. A railway accident had suddenly deprived her of both parents, throwing her wholly upon her own resources without a penny in the world. Sir Horace had gracefully come to the rescue and given her a home and a refuge, being doubly repaid for it by the affection and care she gave him and the manner in which she assumed control of a household which, hitherto, had been left wholly to the attention of servants. Lady Wyvern had long been dead, and her two daughters were of that type which devotes itself entirely to the pleasures of society and the demands of the world. A regular pepperbox of a man, testy, short-tempered, exacting, Sir Horace had flown headlong to Superintendent Narkom's office as soon as that gentleman's note, telling him of The Vanishing Cracksman's latest threat, had been delivered, and, on Miss Lorne's advice, had withheld all news of it from the members of his household, and brought her with him.

"I tell you that Scotland Yard must do something—must! must! must!" stormed he as Narkom, resenting that stigma upon the institution, puckered up his lips and looked savage. "That fellow has always kept his word, always, in spite of your precious band of muffs, and if you let him keep it this time, when there's upward of

£40,000 worth of jewels in the house, it will be nothing less than a national disgrace, and you and your wretched collection of bunglers will be covered with deserved ridicule."

Narkom swung round, smarting under these continued taunts, these "flings" at the efficiency of his prided department, his nostrils dilated, his temper strained to the breaking-point.

"Well, he won't keep it this time—I promise you that!" he rapped out sharply. "Sooner or later every criminal, no matter how clever, meets his Waterloo, and this shall be his! I'll take this affair in hand myself, Sir Horace. I'll not only send the pick of my men to guard the jewels, but I'll go with them; and if that fellow crosses the threshold of Wyvern House to-night, by the Lord, I'll have him. He will have to be the devil himself to get away from me! Miss Lorne," recollecting himself and bowing apologetically, "I ask your pardon for this strong language—my temper got the better of my manners."

"It does not matter, Mr. Narkom, so that you preserve my cousin's wedding gifts from that appalling man," she answered, with a gentle inclination of the head and with a smile that made the superintendent think she must certainly be the most beautiful creature in all the world, it so irradiated her face and added to the magic of her glorious eyes. "It does not matter what you say, what you do, so long as you accomplish that."

"And I will accomplish it, as I'm a living man, I will! You may go home feeling assured of that. Look for my men some time before dusk, Sir Horace. I will arrive later. They will come in one at a time. See that they are admitted by the area door, and that, once in, not one of them leaves the house again before I put in an appearance. I'll look them over when I arrive to be