Within the station a telegraph-sounder chattered and chirruped. 'Ole Man' Terrill was at the instrument. His duties were over for the forenoon, the east-bound express, which, with the west-bound, composed the only trains that traversed that section of the road each day, having arrived and departed a half-hour before, and he had cut in on the line to regale himself with the news of the world. But there was a dearth of thrilling events, such as his rude soul delighted in. The Apache uprising, that was feared, had not taken place. Colonel Hardie, of Fort Grant, had the situation well in hand. The Nihilists were giving their latest czar a breathing-spell. No new prize-fighter had arisen to wrest the championship of the world from John Sullivan, who had put all his old rivals 'to sleep.' 'Ole Man' Terrill proceeded to follow their example. He had been up late the night before at a poker game. His head fell forward with a jerk. Aroused by the shock, he glanced drowsily about him. Heat-waves danced before the open window. Deep silence hung over his little world. Again his eyelids closed; his head dropped, and slowly he slipped into sleep.

Tragedy was approaching him now, but not along the wire. Down an arroyo, or "draw" (the dry bed of a watercourse), that wound in a detour around the town of Florence, and debauched into the open plain near the station, crept two men in single file, each leading a horse. They were Buck McKee and Bud Lane, who had ridden north from the town that morning with the declared purpose of going to Buck's old ranch, the Lazy K. They had circled about the town, timing their arrival at the station a little after the departure of the train which was expected to bring Dick Lane's money.

McKee emerged first from the mouth of the draw. He wore a coarse flannel shirt, loosened at the throat. About his neck was a handkerchief. His riding-overalls were tucked into high boots with Spanish heels and long spurs. A Mexican hat with a bead band topped a head covered with coarse black hair, which he inherited from his Cherokee mother.

Save for the vulture floating high in air not a living thing was in sight. With the caution of a coyote, McKee crept to the station door and peered blinkingly through the open door into the room. The change from the dazzling light without to the shaded interior blinded him for a moment. He heard the heavy breathing of the sleeper before he saw him.

Returning to the mouth of the arroyo, McKee motioned to his companion to bring out the horses. When this was done, the two men cinched the saddles and made every preparation for sudden flight. Lane and the horses remained outside the station behind a freight-car on a siding, while McKee stole softly through the open door to 'Ole Man' Terrill's side.

Now, the agent used as a safe-deposit vault his inside waistcoat pocket, the lock upon which was a huge safety-pin. For further defense he carried a revolver loosely hung at his hip, and easily reached. His quickness on the draw in the hour of need, and his accuracy of aim made him a formidable antagonist.

Some men are born into the world to become its watch-dogs; others to become its wolves. The presence of a human wolf is, as it were, scented by the human watch-dog, even when the dog is asleep. McKee was known instinctively as a man-wolf to the born guardians of society; Slim Hoover, himself a high type of the man-mastiff, used to say of the half-breed: "I can smell that b'ar-grease he slicks his hair with agin' the wind. He may be out o' sight an' out of mind, when somethin' tells me 'McKee's around'; then I smell b'ar-grease, and the next thing, Bucky shows up, with his ingrasheatin' grin. It's alluz 'grease before meet, as the Sky Pilot would say."

'Ole Man' Terrill was of the watch-dog breed. Whether warned by the instinct of his kind or wakened by the scent of McKee's bear-grease, he suddenly opened his eyes. Like all men accustomed to emergencies, he was instantly in full possession of his wits, yet he pretended to be slightly confused in order to get a grasp upon the situation before greeting his visitor.

"Howdy, Buck," he said, adjusting his revolver as he swung half-round in his chair, that he might reach his weapon more readily in an emergency. "Bustin' or busted?"

"Well, I'm about even with the game," replied McKee, pulling from his pocket a bag of tobacco and papers, and deftly rolling a butterfly cigarette. "Goin' to shake it before I lose my pile. It's me for the Lazy K. Dropped in to say good-by."