The afternoon was half gone, when, on one of these occasions, the scout who had just crept to the top of an elevation was seen by the others to gaze long and steadily in a particular direction through his field-glass. At length, apparently satisfied with what he saw, he stood up, and flashed a dazzling ray of sunlight from a small mirror that he held in his hand. Again and again did he send that flash over miles of prairie, before he saw the answering flash for which he was watching. Then he called the others up; they talked earnestly together for a few minutes, and, having reached some conclusion, they galloped rapidly away, almost at right angles to the course they had been following.

Glen wondered what this movement meant; but it was not until they had ridden for nearly an hour that his unasked questions were answered. Then, as though by magic, so unexpectedly did they appear, a score or more of Indians seemed to spring from the ground and surround them. It was a Cheyenne war-party. Their ponies, under watchful guard, grazed in a slight depression to one side of them, and their scouts kept a keen lookout from a rise of ground beyond.

While these warriors were exchanging greetings with the new-comers, and regarding the prisoner with unconcealed satisfaction, two white men, utterly unsuspicious of their presence so near them, were lounging in front of the Lost Creek stage station, less than a mile away. From this station the scouts had stolen their ponies and the white mule two nights before.

The ranch and stable stood side by side, and were low, one-story buildings, with walls of a soft sandstone, quarried near by, and roofs of poles covered with sods. Behind them was a corral enclosed by a low stone wall. The ranch and stable were connected by a narrow subterranean passage, and another led from the house to a "dug-out," or square pit, some ten yards from it. This "dug-out" had a roof of poles heavily covered with earth and sods; while, just at the surface of the ground, port-holes opened on all sides. A similar pit, on the other side, could be reached from the stable, and another, in the rear of the station, was connected with the corral.

Lost Creek Station had suffered greatly at the hands of Indians that summer. Its inmates had been killed, and its stock run off. Now but two men were left to guard it. This afternoon they were watching anxiously for the stage from the east, which was some hours overdue.

Suddenly, as they gazed along the distant wagon trail, there came a thunderous rush of hoofs from behind the station. But the men had heard the sound before, and did not need to look to know what it meant.

"They're after us again, Joe!" exclaimed one, in a disgusted tone, as they sprang into the ranch and barred its heavy door behind them. A moment later they were in the "dug-out" behind the corral, and the gleaming barrels of two rifles were thrust from two of its narrow port-holes.

"I swear, Joe! if one of them hasn't the cheek to ride old Snow-ball, and he's in the lead, too. You drop him, and I'll take the next one."

There were two reports. A white mule pitched heavily forward and its rider was flung to the ground. A wounded Indian clung to his pony. Then the whole band wheeled and dashed back to where they had come from, taking both their wounded warrior and the one who had been flung to the ground with them.

"Did you notice that the fellow I dropped had a white man's hat on?" asked Joe, as the two men watched the retreat of their foes.