The stars had long been out before he reached Alkali Flat. He was far from any road, but the unerring instinct of the frontiersman took him, with many twists and turns, in the direction he had chosen. Not long after midnight he struck Walker Lake. He followed the shore line around the southern point. On a little peninsula he unsaddled, picketed Nevada Jim, and slept for nearly two hours.

Darkness was still heavy over the land when he saddled and retied the mail sacks. He crossed Cat Creek, turned northwest, and began the hill trek into the Walker River Range.

Light began to filter into a sky that grew less opaque. The hills took vague outlines. A meadow lark’s piping heralded the advent of the young day.

He put Nevada Jim at the saddle of a hill and reached the brow that formed part of the lip of a small saucer-shaped valley beyond. A score of morning camp-fires shone like glowworms in the misty hollow. By chance he had stumbled on a party of Piutes who had probably raided a ranch and come down here to revel undisturbed. Very likely it was the same bunch that had waylaid and shot Tim. There rose to the express rider the pungent smell of burning meat, and he guessed that the Indians were indulging in their favourite feast of roasted horseflesh.

McClintock made to turn back, but as he did so a slim breech-clothed figure shot up from the sage almost at his stirrup. The rider, silhouetted against the skyline, was a mark hardly to be missed at such close range even by a Piute with a trade gun. Hugh dragged Nevada Jim round with fore feet in air, drove home his spurs, and charged straight at the brave.

A red-hot stab seared McClintock’s side. A moment, and he felt the shock of impact. The sentry was flung headlong before the weight of the horse, which staggered over the naked body, trod it under, and went plunging down the hill.

Hugh heard guttural shouts of alarm from the valley. Presently, riding along the arroyo below, he saw horsemen urging their mounts over the brow of the hill. A shout of triumph told him that he had been seen by his pursuers.

As the long strides of the horse carried him down the arroyo, the boy’s brain functioned to meet the emergency. He might turn to the right, circle the lake, make for Alkali Flat, and from there across the hills on the long stretch for the station. The alternative was to keep going north, strike across the range, and point for Carson. Even in this desperate emergency the morale of the service was the deciding factor. The mail was due at Carson in a few hours. With a pressure of his right knee he guided Nevada Jim up the gulch toward a mountain pass he knew above.

If his horse had been fresh McClintock would have had small fear of the result. The Indians had no such ponies as the one he was astride. Their stock was inferior, just as their rifles were. Moreover, at their best they were wretched marksmen. But all the natural advantages of the white man were neutralized. Nevada Jim was far from fresh. Any rifle was better than none, and the pony express rider had to depend on a revolver, good for fast-short-range work but useless now. He was one against many, and already he could feel a wet splash on his shirt when he pressed his hand to his side. How bad the wound was he did not know, but it was certain that the long hard ride before him would not add to his strength.

A boy of his age, trained in any other school except the hard outdoor one of the frontier, might have been forgiven for getting panicky under the circumstances. But Hugh wasted no nerve force in fear surges or in self-pity. He had a job to do. He must do it. That was the simple A B C of his reasoning. Quite coolly he set his mind to work on the problem of how it was to be done, given the conditions that confronted him. One trouble was that he did not know those conditions. How long could Nevada Jim, after the hard hours of travel that lay between him and the station, keep going at the pace required? Was he himself likely to collapse suddenly from loss of blood?