Jackson, the footman, who he knew was one of the murderers, was dead, and so far Birdie Rose had been unable to trace the man’s family or connections; but Peters, the butler, was not dead, and out of Peters’ own mouth, in his effort apparently to seal for all time his, Billy Kane’s, guilt, Peters had convicted himself!

True, before a jury, Peters had done himself no harm—that was the hellish ingenuity of the scheme that fitted in with all the rest of the devil’s craft with which the affair had been planned. Peters, in the public’s eyes, or before any court, was treading on safe and solid ground, for his, Billy Kane’s, simple denial was worth nothing in any man’s opinion to-day; but he, Billy Kane, knew that Peters’ testimony was not fact. Peters had testified that he had seen him, Billy Kane, leave the house about seven o’clock—which was true. Peters had then deliberately testified that half an hour later, though he had not seen Mr. Kane return, he had seen Mr. Kane come quietly down the back stairs, and enter the library—which, besides being untrue, since he, Billy Kane, was not even in the house at that time, was also equivalent to swearing away his, Billy Kane’s, life. Peters, continuing his evidence, had stated that he was quite sure he had not been seen by Mr. Kane, as he, Peters, at that moment was standing just inside the cloakroom off the hall. He did not see Mr. Kane emerge again from the library, but some fifteen minutes later a telephone call came in for Mr. Ellsworth, and, knowing Mr. Ellsworth to be in the library, he connected with that room. He tried several times, but could get no reply. Finally he went to the library door and opened it, and found Mr. Ellsworth with his skull crushed in, dead upon the floor, the private vault and safe open and looted. He at once called the police. He stated that it was obvious Mr. Kane had made his escape from the library through the stenographer’s room at the rear, and from there to the back entrance, where, later on again, as the police already knew, returning once more in the hope presumably of recovering the card with the combinations of the safe and vault on it in his handwriting, he had been discovered by Jackson, the footman, and had killed Jackson, who had tried to capture him.

Billy Kane’s hands were shoved in an apparently nonchalant manner into the side pockets of his coat—to hide them from view now. The nails were biting into the palms of his hands. “Killed” that was the word Peters had used—“killed.” It was very subtle of Peters to have used that word—it just clinched the whole story with the seemingly obvious. Everybody believed that he, Billy Kane, had killed Jackson, as well as David Ellsworth. Yes, Peters had put the finishing touch on the evidence that was meant to free the actual perpetrators, himself quite evidently amongst them, from punishment, and to send him, Billy Kane, if caught, as their proxy to the death chair in Sing Sing.

Quite so! And Peters thought himself quite safe. What had Peters to fear from a hunted wretch who he undoubtedly believed was miles away, fleeing for his life, cowering from the sight of his fellow humans, afraid to show his face? But Peters and his accomplices had overshot the mark! The evidence was final, incontrovertible, damning—only it was not true. He, Billy Kane, would not dispute it with a jury—he would put Peters on a witness stand of a grimmer nature than that! He had known on the night of the crime that Jackson, the footman, was one of the guilty men; but he had not suspected that the dignified, perfectly trained Peters, the butler, with his fastidiously trimmed, gray, mutton-chop side-whiskers, was likewise one of the band. And now he wondered why he had not thought of it.

He saw Peters in quite a different light now! A hundred little incidents metamorphosed the man’s excessive efficiency and attentiveness into a smug mask of hypocrisy. And, corroborative from this new viewpoint, where, for instance, had Peters, as it now appeared, got the money to send his family away even to a boarding house? Butlers were not in the habit of sending their families away to the seaside for the summer! Even Whitie Jack had not failed to comment on that fact. Well, he was satisfied that he knew the real Peters now, and it was not too late. It was Peters, or himself now. It was his life, or Peters’ life—unless Peters laid bare to the last shred the whole plot, and the name of every man connected with it.

And the stage was set. From the moment he had read the papers that morning, he had put Whitie Jack at work—and Whitie Jack had done well, exceedingly well. He, Billy Kane, knew that Peters was married and had a family, but he had not known Peters’ home address. Whitie Jack had proved a most praiseworthy ferret. He, Billy Kane, knew that Thursday was always Peters’ night off. This was Thursday night. Peters, then, if he followed his usual custom, would visit his flat to-night; and, since the man’s family was away, Peters and he would be alone. It was fortunate that the family was away, luck seemed to be turning; it precluded the necessity of getting Peters somewhere else—alone. It simplified matters. Peters’ flat would serve most excellently for that interview!

He laughed a little now. He was strangely cool, strangely composed. He was in a mood in which he found difficulty in recognizing himself. He was going to-night to wring from a man either that man’s life, or that man’s confession. He was absolutely merciless in that resolve; he would not turn back, nothing would make him swerve one iota from that determination, he would go the limit—and yet he sat here entirely unmoved, callous.

Well, after all, why not? If the man was already a murderer, his life was already forfeit. If he, Billy Kane, must choose between losing his own life and permitting one of the murderers of David Ellsworth to profit further thereby, would one hesitate long over that choice, or hesitate to go—the limit?

[XIII—THE CIPHER MESSAGE]

Billy Kane’s hands came from his pockets again, and he leisurely lighted a cigarette. Though sitting sideways to the door, he nevertheless unostentatiously commanded a full view of the entrance. Red Vallon had just entered, and, after a moment’s pause in which the man’s eyes searched around the dance hall, was coming forward, threading his way through the intervening tables. Billy Kane flung a short nod of recognition in the direction of the approaching gangster; and then his eyes fastened in a sort of hard, curious expectancy on the street door again. Whether or not it was intuition or premonition, induced by what had happened the previous night when Red Vallon had been followed, he did not know, but he was somehow prepared now, a little more than prepared, almost sure, in fact, that there would be a repetition of last night’s occurrence.