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." Terrill, who had recently had an expensive seance with McKee at poker, remonstrated: "Yuh ought 'o give me another chanct at yuh, Buck. Yo're goin' away with too much of my money." "Well, 'Ole Man,' I'm likely to rob yuh of a lot more ef you ain't keerful," answered McKee. "Yuh can't jet yeta while," said Terrill. "Dead broke." "Aw, come off! everybody knows ye're a walkin' bank. Bet yuh got three thousan' in that inside pocket o' your'n this minute." Terrill started at McKee's naming the exact amount he was carrying. He forgot his customary caution in his surprise. "Well, you did just hit it, shore enough. I believe ye're half-gipsy instid o' half-Injun. Jus' like yer knowin' I stood pat on four uv a kind when you had aces full, and throwin' down yer cyards 'fore I c'u'd git even with yuh. How do yuh do it, Buck?" McKee gave a smile of cunning, inscrutable superiority. "Oh, it's jes' a power I has. 'Keen sabby,' as the Greasers say--I'm keen on the know-how. Why, I kin tell yuh more about the money. It's fer Jack Payson--"