"They're rustlers. Ther's their tracks clear as day. This is their hiding. Wal, I guess there's jest one thing to be done. It's our duty to track 'em down. Our duty to the cattle world, Jeff, boy."

"But what about—Ronald?"

Bud looked him squarely in the eyes.

"We're cattlemen first, Jeff. The other'll come later."

Jeff nodded, but there was a certain reluctance in his manner. His whole heart was set upon the search for his twin brother. He felt that his duty as a cattleman scarcely had the right to claim him at such a time. But the older man's manner made it difficult to protest, and, in deference to him, he felt it would be ungenerous to refuse. After all it only meant perhaps the delay of a day for his own projects.

"Then we'll feed and water right here, Bud," he said resignedly. "We can leave our pack ponies, and ride light. There's five hours of daylight yet."

"Yes, five hours good. Thanks, boy. Don't you worry a thing. We'll make this time good. We're goin' to find your Ronald—if he's anywheres around these Cathills."

* * * * * *

The more concentrated the character, the more sure its power of moral endurance, so the more acute its suffering under adversity. Such penalties lie ambushed for the strong, as though in delight at the immensity of the suffering which can thereby be inflicted.

Such an ambush was awaiting Jeffrey Masters. It came with terrifying suddenness. Bud was on the lead. The great sea of blue grass had been beaten and crushed by the hoofs of a considerable herd. There was no difficulty, and the pace he made was rapid. But, even so, Bud's keen eyes never left the well-defined trail. He was reading it with an understanding which might well have seemed almost superhuman. And as he rode he communicated odd fragments of his reading to the man behind him.