But fate, too, had given him a weapon with which to fight; and, two-edged though it was, with a chance always that it might turn upon himself, he meant to use it now—and that weapon was the underworld. He did not know yet, he was not sure yet just how high he stood in that unsavory command, but he had discounted rather than overrated his power, and he believed he had power enough for his purpose—those whispers and those shadows had seemed to assure him of that. The Rat seemed to be the driving strategical force in this crime syndicate that appeared to permeate the Bad Lands with its influence, and move and sway the underworld at its own imperious pleasure—and for the moment he was the Rat!

There was Jackson—and Jackson was dead. His mind had flown off at another apparently irrelevant tangent. But it was not irrelevant. The papers had said that Jackson, the footman, had died that morning after lingering in a semi-conscious state through the night. Jackson was the single clue in his possession. Jackson, he knew, was one of the murderers, but Jackson was the only man he knew who was concerned in that devil’s work last night—and Jackson was dead. And now he, Billy Kane, was “wanted” on a double charge of murder—for the murder of Jackson, who had probably himself struck old David Ellsworth down, as well as for the murderer of the old millionaire! Yet Jackson, even if dead, must still have left some clue behind him, if only that clue could be found. Who was Jackson? The man had already been in service at David Ellsworth’s before he, Billy Kane, had gone there as the old philanthropist’s secretary, and he had naturally had neither motive nor interest then in any of the footman’s personal concerns. But those facts were vital now. Who was Jackson? Where had the man come from? Who were——

Footsteps were descending from the street. There was a low knock, twice repeated on the door. Whitie Jack was on his feet, and looking inquiringly toward the bed.

“Watch yourself!” said Billy Kane gruffly. “I’m not entertaining to-night, except——”

“Sure—I know!” said Whitie Jack. He crossed the room, and, opening the door a crack, peered out. “Red and Karlin,” he informed Billy Kane in a whisper.

[VIII—A LEASH IS SLIPPED]

Billy Kane lighted a cigarette. Red Vallon he already knew—Karlin he was supposed to know. “Let them in,” instructed Billy Kane.

He raised himself on his elbow.

“Hello, Karlin!” he greeted, as the two men stepped into the room. “Red’s told you I was laid up—eh? Glad to see you! Shake!”

His eyes, half closed, fixed on the other in scrutiny, as the man advanced toward the bed. Karlin was immaculately dressed—in sharp contrast to the untidy and careless attire of the stocky, brutal-faced gangster who followed close at his heels. The man was tall, slimly built, and, save that the black eyes were too close together and too small, had a pleasant and attractive face. It was a mask perhaps! The smile was too engaging; and it was rather curious how small the ears were, and how tightly they hugged the skull. He toyed with a little black Vandyke beard, as he shook hands.