"We have gained half an hour anyhow," Jerry said, as they galloped up the ravine, "and I reckon by the time we overtake them we shall find them stowed away in some place where it will puzzle the red-skins to dislodge us. The varmint will fight hard if they are cornered, but they ain't good at advancing when there are a few rifle-tubes, in the hands of white men, pointing at them, and they have had a lesson now that we can shoot."
 
The ravine continued to narrow. The stream had become a mere rivulet, and they were high up on the hillside.
 
"I begin to be afeared there ain't no place for making a stand." Here he was interrupted by an angry growl, as a great bear suddenly rose to his feet behind a rock.
 
"You may thank your stars that we are too busy to attend to you," Jerry said, as they rode past within a few yards of it. "That is a grizzly, Tom; and an awkward beast you would have found him if you had come upon him by yourself without your shooting-iron. He is a big one too, and his skin would have been worth money down in the settlements. Ah, there they are."
 
The ravine made an abrupt turn to the west, and high up on its side they saw their three companions with the five horses climbing up the precipitous rocks.
 
"How ever did they get up there?" Jerry exclaimed.
 
"Found Indian trail," the chief said. "Let my brothers keep their eyes open."
 
They rode on slowly now, examining every foot of the steep hillside. Presently Hunting Dog, who was ahead, uttered an exclamation. Between two great boulders there was a track, evidently a good deal used.
 
"Let Hunting Dog go first," the chief said. "Leaping Horse will follow the white men."
 
"I reckon that this is the great Indian trail over the pass," Jerry said to Tom, who preceded him. "I have heard there ain't no way over the mountains atween that pass by Fremont's Buttes and the pass by this peak, which they calls union Peak, and the red-skins must travel by this when they go down to hunt buffalo on the Green River. It is a wonder Harry struck on it."
 
"Leaping Horse told him to keep his eyes open," the chief said from the rear. "He knew that Indian trail led up this valley."
 
"Jee-rusalem! but it's a steep road," Jerry said presently. "I am dog-goned if I can guess how the red-skins ever discovered it. I expect they must have tracked some game up it, and followed to see where it went to."
 
The trail wound about in a wonderful way. Sometimes it went horizontally along narrow ledges, then there was a bit of steep climbing, where they had to lead their horses; then it wound back again, and sometimes even descended for a distance to avoid a projecting crag.
 
"Ah! would ye, yer varmint?" Jerry exclaimed, as a shot rang out from the valley below and a bullet flattened itself against a rock within a foot or two of his head. The shot was followed by a loud yell from below, as a crowd of mounted Indians rode at full gallop round the angle of the ravine.
 
"Hurry on, Hunting Dog, and get round the next corner, for we are regular targets here."
 
A few yards farther a turn of the path took them out of sight of the Indians, but not before a score of bullets came whistling up from below.
 
"The varmint have been riding too fast to shoot straight, I reckon. It will be our turn directly."
 
Just as he spoke the chief called upon them to dismount. They threw their bridles on their horses' necks, and descending to the ledge they had just left, lay down on it.
 
"Get your revolver out, Tom, before you shoot," Jerry said. "They will be off before you have time to load your rifle again."
 
The Indians were some four hundred feet below them, and were talking excitedly, evidently hesitating whether to follow up the trail. The four rifles cracked almost together. Two Indians fell, and the plunging of two horses showed that they were hit. In an instant the whole mass were on their way down the valley, followed by bullet after bullet from the revolvers which Leaping Horse as well as the whites carried. Anything like accurate aim was impossible, and no Indian was seen to fall, but it was probable that some of the bullets had taken effect among the crowded horsemen.
 
"Go on quiet now," Leaping Horse said, rising to his feet. "'Rappahoes not follow any farther. One man with this"—and he touched his revolver—"keep back whole tribe here."
 
Half an hour later they joined the party who had halted at the top of the track.
 
"It air too bad our being out of it," Ben said. "I hope you have given some of the varmint grist."
 
"Only five or six of them," Jerry replied regretfully, "counting in the one Leaping Horse shot at the village. Tom here did a big shot, and brought one down in his tracks at a good four hundred yards—as neat a shot as ever I saw fired. The chief he accounted for another; then atween us we wiped out two down below; and I reckon some of the others are carrying some of our lead away. Waal, I think we have shook them off at last any how. I suppose there ain't, no other road they can come up here by, chief?"
 
"Leaping Horse only heard of one trail."
 
"You may bet your life there ain't another," Harry remarked. "They would never have used such a dog-goned road as this if there had been any other way of going up."
 
"Camp here," the chief said. "Long journey over pass, too much cold. Keep watch here at head of trail."
 
"That is a very good plan. I have heard that the pass is over nine thousand feet above the sea, and it would never do to have to camp up there. Besides, I have been looking at the sky, and I don't much like its appearance. Look over there to the north."
 
There were, indeed, evident signs of an approaching change in the weather. On the previous day every peak and jagged crest stood out hard and distinct in the clear air. Now all the higher summits were hidden by a bank of white cloud.
 
"Snow," the Indian said gravely; "winter coming."
 
"That is just what I thought, chief. At any rate we know where we are here, and there is brushwood to be gathered not far down the trail; and even if we are shut up here we can manage well enough for a day or two. These early snows don't lie long, but to be caught in a snow-storm higher up would be a sight worse than fighting with red-skins."
 
From the spot where they were now standing at the edge of the ravine the ground sloped very steeply up for some hundreds of feet, and then steep crags rose in an unbroken wall; but from the view they had had of the country from the other side they knew that behind this wall rose a range of lofty summits. The Indian trail ran along close to the edge of the ravine. The chief looked round earnestly.
 
"No good place to camp," he said. "Wind blow down hills, horses not able to stand against it. Heap snow tumble down from there," and he pointed upwards. "Carry everything down below."
 
"Well, if you think we had better push on, let us do so, chief."
 
The Indian shook his head and pointed to the clouds again. "See," he said; "storm come very soon."
 
Even in the last two or three minutes a change was perceptible. The upper edge of the clouds seemed to be suddenly broken up. Long streamers spread out like signal flags of danger. Masses of clouds seemed to be wrenched off and to fly with great rapidity for a short distance; some of them sinking a little, floated back until they again formed a part of the mountain cap, while others sped onwards towards the south.
 
"No time," the chief repeated earnestly; "must look for camp quick." He spoke in the Indian tongue to Hunting Dog, and the two stood on a point where the ground jutted out, and closely examined the ravine up whose side they had climbed. The chief pointed farther along, and Hunting Dog started at a run along the Indian trail. A few hundred yards farther he paused and looked down, moved a few steps farther, and then disappeared from sight. In three or four minutes he returned and held up his arms.
 
"Come," the chief said, and taking his horse's rein led it along the path. The others followed his example, glad, indeed, to be in motion. Five minutes before they had been bathed in perspiration from their climb up the cliff; now they were conscious of the extraordinary change of temperature that had suddenly set in, and each had snatched a blanket from behind his saddle and wrapped it round him. They soon reached the spot where Hunting Dog was standing, and looked down. Some thirty feet below there was a sort of split in the face of the cliff, a wall of rock rising to within four or five feet of the level of the edge of the ravine. At one end it touched the face of the rock, at the other it was ten or twelve feet from it, the space between being in the form of a long wedge, which was completely filled up with trees and brushwood. A ledge ran down from the point where Hunting Dog was standing to the mouth of the fissure.
 
"Jee-rusalem, chief!" Ben exclaimed. "That air just made for us—we could not have found a better, not if we had sarched for a year. But I reckon we shall have to clear the place a bit before we take the critters down."
 
Two axes were taken from one of the pack-horses.
 
"Don't cut away the bigger stuff, Ben," Harry said as his two mates proceeded down the ledge, "their heads will shelter us from the snow a bit; and only clear away the bushes enough to give room for the horses and us, and leave those standing across the entrance to make a screen. While you are doing it we will fetch in as much more wood and grass as we can get hold of before the snow begins to fall."
 
The horses were left standing while the men scattered along the top of the ravine, and by the time Ben shouted that they were ready, a considerable pile of brushwood and a heap of coarse grass had been collected. The horses were then led down one by one, unsaddled, and packed together in two lines, having beyond them a great pile of the bushes that had been cut away.
 
"I am dog-goned if this ain't the best shelter I ever struck upon," Jerry said. "We could not have fixed upon a better if we had had it built special," the others cordially agreed.
 
The place they occupied was of some twelve feet square. On either side was a perpendicular wall of rock; beyond were the horses; while at the entrance the bush, from three to four feet high, had been left standing; above them stretched a canopy of foliage. Enough dry wood had been collected to start a fire.
 
"Don't make it too big. Jerry, we don't want to scorch up our roof," Harry Wade said. "Well, I reckon we have got enough fuel here for a week, for there is what you cut down and what we brought, and all that is left standing beyond the horses; and with the leaves and the grass the ponies should be able to hold out as long as the fuel lasts. We are short of meat, but we have plenty of flour; and as for water, we can melt snow."
 
Buffalo rugs were laid down on each side by the rock walls, and on these they took their seats and lighted their pipes.
 
"I have been wanting a smoke pretty bad," Jerry said; "I ain't had one since we halted in that there ca?on. Hello, here it comes!"
 
As he spoke a fierce gust of wind swayed the foliage overhead and sent the smoke, that had before risen quietly upwards, whirling round the recess; then for a moment all was quiet again; then came another and a stronger gust, rising and gathering in power and laden with fine particles of snow. A thick darkness fell, and Harry threw some more wood on the fire to make a blaze. But loud as was the gale outside, the air in the shelter was hardly moved, and there was but a slight rustling of the leaves overhead. Thicker and thicker flew the snow flakes in the air outside, and yet none seemed to fall through the leaves.
 
"I am dog-goned if I can make this out," Sam Hicks said. "We are as quiet here as if we were in a stone house, and one would think there was a copper-plated roof overhead. It don't seem nat'ral."
 
The others were also looking up with an air of puzzled surprise, not unmingled with uneasiness. Harry went to the entrance and looked out over the breastwork of bushes. "Look here, Sam," he said.
 
"Why, Harry, it looks to me as if it were snowing up instead of down," the miner said as he joined him.
 
"That is just it. You see, we are in the elbow of the valley and are looking straight down it, into the eye of the wind. It comes rushing up the valley and meets this steep wall on its way, and pushed on by the wind behind has to go somewhere, and so it is driven almost straight up here and over the hilltops behind us. So you see the snow is carried up instead of falling, and this rock outside us shoots it clear up over the path we were following above. As long as the wind keeps north, I reckon we sha'n't be troubled by the snow in here."
 
The explanation seemed satisfactory, and there was a general feeling of relief.
 
"I remember reading," Tom said, as the others took their seats again, "that people can stand on the edge of a cliff, facing a gale, without feeling any wind. For the wind that strikes the cliff rushes up with such force that it forms a sort of wall. Of course, it soon beats down again, and not many yards back you can feel the gale as strongly as anywhere else. But just at the edge the air is perfectly still."
 
The miners looked at Tom as if they thought that he was making a joke at their expense. But his uncle said:
 
"Yes, I can quite believe that. You see, it is something like a waterfall; you can stand right under that, for the force shoots it outwards, and I reckon it is the same sort of thing here." The chief nodded gravely. He too had been surprised at the lull in their shelter when the storm was raging so furiously outside, but Harry's illustration of the action of rushing water enlightened him more than his first explanation had done.
 
"But water ain't wind, Harry," Ben said.
 
"It is like water in many ways, Ben. You don't see it, but you can feel it just the same. If you stand behind a tree or round a corner it rushes past you, and you are in a sort of eddy, just as you would be if it was a river that was moving alongside of you. Wind acts just the same way as water. If it had been a big river coming along the valley at the same rate as the wind it would rush up the rocks some distance and then sweep round and race up the valley; but wind being light instead of being heavy is able to rush straight up the hill till it gets right over the crest."
 
"Waal, if you say it is all right I suppose it is. Anyhow, it's a good thing for us, and I don't care how long it goes on in the same way. I reckoned that before morning we should have those branches breaking down on us with the weight of snow; now I see we are like to have a quiet night."
 
"I won't answer for that, Ben; it is early in the day yet, and there is no saying how the wind may be blowing before to-morrow morning. Anyhow, now we have time we may as well get some of those bundles of bushes that we brought down, and pile them so as to thicken the shelter of these bushes and lighten it a bit. If we do that, and hang a couple of blankets inside of them, it will give us a good shelter even if the wind works round, and will help to keep us warm. For though we haven't got wind or snow in here, we have got cold."
 
"You bet," Jerry agreed; "it is a regular blizzard. And although I don't say as it is too cold sitting ............