It is usually at just such a time as that, when one feels as though he is about to accomplish something really worth while, that the unexpected bobs up to play hob with all his well-laid plans.

While Matt was on his knees, refreshing himself with the cool spring-water, a wild yell came from Chub. Matt was on his feet in a jiffy, and whirled just in time to see Chub take a header from the rock pile.

He must have finished filling out the notices and climbed to the top of the center monument to tack one of them to the board, when the unexpected arrived.

Matt saw Jacks on top of the stone heap, and it was he who had given Chub the shove that landed him on his hands and knees at the bottom of the pile. Chub got up angrily, and gathered in a scrap of paper that had dropped beside him; then he turned and faced the prospector, who was roaring and shaking his fist.

"What d'ye mean, ye red-headed whelp, by tamperin' with my location notice? Tryin' ter jump this here claim, hey? Waal, you scatter, an' do it quick! If ye don't, I'll kick ye clean off'n the map!"

Jacks was not the only enemy that had come to work havoc with the plans of Matt and Chub. Bisbee was there, also, and so—to Matt's intense amazement—was Dace Perry.

Perry was standing beside a saddle-horse. The animal had been ridden hard and was plainly far gone with fatigue.

Jacks and Bisbee, it now seemed to Matt, had gone off somewhere among the rocks to meet Perry. Jacks probably had pitched a camp near-by, where he had stayed while watching Chub's father; and, naturally, it would be to this camp that Perry would go to meet the ruffian. Having joined forces, all three of the plotters had advanced covertly upon Matt and Chub.

Matt ran forward, to place himself shoulder to shoulder with Chub. Perry saw him coming, and called Bisbee's attention to him.

"You stay whar ye aire!" yelled Bisbee.