“Listen, then!” Her voice had been quiet, deliberate, and yet pregnant with a curiously sharp, imperative command. “Find Clarkie Munn and Gypsy Joe at once, and shadow them to-night. Do not let them out of your sight. And see that you do not fail! Do you understand?”

“Yes,” he had replied mechanically; “but——”

That was all. She had hung up the receiver at the other end of the line.

He had heard of Clarkie Munn and Gypsy Joe in the days when he had frequented the Bad Lands on old David Ellsworth’s philanthropic missions, for the very simple reason that they were notorious and outstanding criminal characters even in the heart and center of the worst crime and vice in the city. They were both lags, both men with prison records, and marked by the police. Also they were versatile. They had in turn been apaches, gangsters, box-workers, poke-getters and second-story sneaks; and they were credited with measuring human life purely as a commercial commodity—worth merely what they could get for it.

He had heard of Clarkie Munn and Gypsy Joe—who hadn’t?—but as to their lair, or where they were to be found, he had not had the slightest inkling. Whitie Jack, however, had solved that problem for him. He had sent Whitie Jack out to run them down, and Whitie had returned within an hour with the report that they were in a certain far from reputable saloon, and that they had been joined by the Cherub. He, Billy Kane, had never heard of the Cherub, but an adroit leading question or two had set Whitie Jack’s glib tongue in motion. The Cherub had proved a topic that had aroused an unbounded enthusiasm in Whitie Jack.

“Dey ain’t got nothin’ on de Cherub—none of ’em has,” Whitie Jack had asserted, switching his cigarette butt from one corner of his mouth to the other in order to permit of an admiring grin. “He’s de angel kid—he is! Youse’d think he spent his life handin’ around hymn books an’ leadin’ de singin’ down at de mission joints—only he don’t! If he got enough for it he’d pull a gun an’ blow yer bean off, an’ youse wouldn’t believe it was him even while he was doin’ it, he’d look dat innocent. Believe me, Bundy! He’s got ’em all skinned, an’ he ain’t got no limit except de sky. Mabbe some day de police’ll get wise, but dey ain’t fallen to de sweet little face of him wid his baby eyes yet. But, aw, say, wot’s de use! Youse know him as well as I do. Youse’d think dey’d just lifted him out of a dinky little cradle an’ soused him all over wid Florida water—dat’s de Cherub. But de guy dat knows him ducks his nut—dat’s all.”

Billy Kane shook his head in a sort of savage perplexity. He had dismissed Whitie Jack then, picked up Clarkie Munn, Gypsy Joe and the Cherub, and had followed them here. He had come abreast of the tenement in which they had disappeared now, and he looked quickly around him. There was no one on the street close enough to pay any particular attention to his movements; and there was no doorbell to ring, for in that locality the formality of entering a tenement, where humans hived instead of lived, and where at all hours the occupants came and went as a matter of course, consisted in pushing the door open without further ceremony. His hand slipped into the side pocket of his coat, and his fingers closed in a reassuring touch upon his automatic. For what particular reason he was to watch Gypsy Joe and Clarkie Munn he was as much as ever in the dark; but one thing was clear—there was only one way to keep in touch with his quarry.

He stepped from the sidewalk, and, with well-simulated unconcern, pushed the tenement door open, entered, closed the door softly behind him, and stood still, listening intently. The place was gloomy and dark, and heavy with a musty, unsavory odor of garlic and rank, stale tobacco; but ahead of him, along what seemed like a narrow passage flanking the stairs, a faint glow of light struggled out into the blackness, as though from a partially opened door, and from this direction a murmur of men’s voices reached him.

He moved stealthily forward for a few steps; and then halted abruptly, and pressed back against the wall. Yes, here were the men he sought. In so far as locating them in the tenement was concerned, he was in luck. The hallway had widened out beyond the staircase, and from where he now stood, through a half-opened door, a door that was in poverty-stricken and disreputable repair, whose panels, smashed and broken probably in some fracas of former days, were patched with strips of cardboard that in turn, hanging by a tack or two, gaped blatantly, he could make out Clarkie Munn’s dark, scowling, unshaven features, as the man sat sprawled out on a chair in the centre of the room; also, Clarkie Munn was swearing viciously:

“Well, where’s Shaky Liz—eh? Where’s Shaky Liz? Who’s right now about comin’ back here? Her tongue’s been hangin’ out fer a drink now fer two weeks, an’ she’s bust loose. Dat’s wot she’s done—yes, an’ probably queered de whole lay too! I told youse so! I told youse youse’d have to show me about Shaky Liz before I’d go de limit. See! I ain’t fer any juice chair up de river—not yet! Savvy?”