Corrigan's smile was bitter as he again walked into the rear room and surveyed his reflection in the glass. Disgusted, he turned to one of the windows and looked out. From where he stood he could see straight down the railroad tracks to the cut, down the wall of which, some hours before, Trevison had ridden the black horse. The dinky engine, with its train of flat-cars, was steaming toward him. As he watched, engine and cars struck the switch and ran onto the siding, where they came to a stop. Corrigan frowned and looked at his watch. It lacked fully three hours to quitting time, and the cars were empty, save for the laborers draped on them, their tools piled in heaps. While Corrigan watched, the laborers descended from the cars and swarmed toward their quarters--a row of tent-houses near the siding. A big man--Corrigan knew him later as Patrick Carson--swung down from the engine-cab and lumbered toward the little frame station house, in a window of which the telegrapher could be seen, idly scanning a week-old newspaper. Carson spoke shortly to the telegrapher, at which the latter motioned toward the bank building and the private car. Then Carson came toward the bank building. An instant later, Carson came in the front door and met Corrigan at the wire netting. "Hullo," said the Irishman, without preliminaries; "the agent was tellin' me I'd find a mon named Corrigan here. You're in charge, eh?" he added at Corrigan's affirmative. "Well, bedad, somebody's got to be in charge from now on. The Willie-boy engineer from who I've been takin' me orders has sneaked away to Dry Bottom for a couple av days, shovin' the raysponsibility on me--an' I ain't feelin' up to it. I'm a daisy construction boss, if I do say it meself, but I ain't enough of a fightin' mon to buck the business end av a six-shooter." "What's up?" "Mebbe you'd know--he said you'd be sure to. I've been parleyin' wid a fello' named 'Firebrand' Trevison, an' I'm that soaked wid perspiration that me boots is full av it, after me thryin' to urge him to be dacently careful wid his gun!" "What happened?" asked Corrigan, darkly. "This mon Trevison came down through the cut this mornin', goin' to town. He was pleasant as a mon who's had a raise in wages, an' he was joshin' wid us. A while ago he comes back from town, an' he's that cold an' polite that he'd freeze ye while he's takin' his hat off to ye. One av his arms is busted, an' he's got a welt or two on his face. But outside av that he's all right. He rides down into the cut where we're all workin' fit to kill ourselves. He halts his big black horse about forty or fifty feet away from the ol' rattle-box that runs the steam shovel, an' he grins like a tiger at me an' says: "'Carson, I'm wantin' you to pull your min off. I can't permit anny railroad min on the Diamond K property. You're a friend av mine, an' all that, but you'll have to pull your freight. You've got tin minutes.'