He heard Barkwell go leaping down the stairs, his spurs striking the step edges, and a few minutes later, riding Nigger out of the corral he saw the foreman racing away in a dust cloud. He followed the bed of the river, himself, going at a slow lope, for he wanted time to think--to gain control of the rage that boiled in his veins. He conquered it, and when he came in sight of the butte he was cool and deliberate, though on his face was that "mean" look that Carson had once remarked about to his friend Murphy, partly hidden by the "tiger" smile which, the Irishman had discovered, preceded action, ruthless and swift. The level below the butte was a-buzz with life and energy. Scores of laborers were rushing about under the direction of a tall, thin, bespectacled man who seemed to be the moving spirit in all the activity. He shouted orders to Carson--Trevison saw the big figure of the Irishman dominating the laborers--who repeated them, added to them; sending men scampering hither and thither. Pausing at a little distance down the level, Trevison watched the scene. At first all seemed confusion, but presently he was able to discern that method ruled. For he now observed that the laborers were divided into "gangs." Some were unloading the flat-cars, others were "assembling" a stationary engine near the wall of the butte. They had a roof over it, already. Others were laying tracks that intersected with the main line; still others were erecting buildings along the level. They were on Trevison's land--there was no doubt of that. Moreover, they were erecting their buildings and apparatus at the point where Trevison himself had contemplated making a start. He saw Corrigan seated on a box on one of the flat-cars, smoking a cigar; another man, whom Trevison recognized as Gieger--he would have been willing to swear the man was one of those who had thwarted his plans in the courthouse--standing beside him, a Winchester rifle resting in the hollow of his left arm. Trevison urged Nigger along the level, down the track, and halted near Corrigan and Gieger. He knew that Corrigan had seen him, but it pleased the other to pretend that he had not. "This is your work, Corrigan--I take it?" said Trevison, bluntly. Corrigan turned slowly. He was a good actor, for he succeeded in getting a fairly convincing counterfeit of surprise into his face as his gaze fell on his enemy. "You have taken it correctly, sir." He smiled blandly, though there was a snapping alertness in his eyes that belied his apparent calmness. He turned to Gieger, ignoring Trevison. "Organization is the thing. Pickand is a genius at it," he said. Trevison's eyes flamed with rage over this deliberate insult. But in it he saw a cold design to make him lose his temper. The knowledge brought a twisting smile to his face. "You have permission to begin this work, I suppose?"