THE TRIAL OF PATIENCE  
The hours of the afternoon trailed slowly away, one by one. Perspiration appeared at last upon the glossy skins of the horses, but their stride did not abate. The powerful muscles still worked with their full strength and ease. Ned never felt a tremor in the splendid horse beneath him. But when he looked back again there were the Lipans, a little further away, but hanging on as grimly as before, still riding in a close group.
 
Ned began to understand now the deadly nature of the pursuit. These Lipans would follow not merely for hours, but into the night, and if he and Obed were lost to sight in the darkness they would pick up the trail the next day by the hoof prints on the plain. He felt with absolute certainty that chance had brought upon them one of the deadliest dangers they had yet encountered.
 
"It's growing a little cooler, Obed," he said.
 
"So it is. The evening wanes. But, Ned, do you see any sign of forest or high hills ahead?"
 
"I do not, Obed. There is nothing but the plain which waves like the ripples on a lake, the bunches of buffalo grass here and there, and now and then an ugly yucca."
 
"You see just what I see, Ned, and as there is no promise of shelter we'd better ease our horses a little. Our lives depend upon them, and even if the Lipans do regain some of their lost ground now it will not matter in the end."
 
They let the horses drop into a walk, and finally, to put elasticity back into their own stiffened limbs, they dismounted and walked awhile.
 
"If the Lipans don't rest their horses now they will have to do it later," said Obed, "but as they're mighty crafty they'll probably slow down when we do. Do you see them now, Ned?"
 
"Yes, there they are on the crest of a swell. They don't seem to gain on us much. I should say they are a full mile away."
 
"A mile and a half at least. The air of these great uplands is very deceptive, and things look much nearer than they really are."
 
"Look how gigantic they have grown! They stand squarely in the center of the sun now."
 
The sun was low and the Lipans coming out of the southwest were silhouetted so perfectly against it that they seemed black and monstrous, like some product of the primitive world. The fugitives felt a chill of awe, but in a moment or two they threw it off, only to have its place taken a little later by the real chill of the coming night. A wind began to moan over the desolate plain, and their faces were stung now and then by the fine grains of sand blown against them. But as the Lipans were gaining but little, Ned and Obed still walked their horses.
 
They went on thus nearly an hour. The night came, but it was not dark, and they could yet see the Lipans following as certain as death. Before them the plain still rolled away, bare and brown. There was not a sign of cover. Ned's spirits began to sink. The silent and tenacious pursuit weighed upon him. It was time to rest and sleep. The Lipans had been pursuing for seven or eight hours now, and if they could not catch fugitives in that time they ought to turn back. Nevertheless, there they were, still visible in the moonlight and still coming.
 
Ned and Obed remounted and rode at a running walk, which was easy but which nevertheless took them on rapidly. But it became evident that the Lipans had increased their pace in the same ratio, as the distance of a mile and a half named by Obed did not decrease. Ned looked up longingly at the sky. There was not a cloud. The moon, round and full, never shone more brightly, and it seemed that countless new stars had arrived that very night. He sighed. They might as well have been riding in broad daylight.
 
Toward midnight the swells and dips of the plain became accentuated, and they lost sight of the pursuing Lipans. But there was yet no forest to hide them, only the miserable mesquite and the ragged yucca. Save for them the plain stretched away as bare and brown as ever. Two hours more with the Lipans still lost to view, Obed called a halt.
 
"The Lipans will pick up our trail in the morning," he said. "Though lost to sight we are to their memory dear, and they will hang on. But our horses are faster than theirs, and as they cannot come near us on this bare plain, without being seen we can get away. Whereas, I say, and hence and therefore we might as well rest and let our good steeds rest, too."
 
"What time would you say it is?"
 
"About two o' the morning by the watch that I haven't got, and it will be four or five hours until day. Ned, if I were you I'd lie down between blankets. You can relax more comfortably and rest better that way."
 
Ned did not wish to do it, but Obed insisted so strongly, and was so persuasive that he acceded at last. They had chosen a place on a swell where they could see anything that approached a quarter of a mile away, and Obed stood near the recumbent boy, holding the bridles of the two horses in one hand and his rifle in the other.
 
The man's eyes continually traveled around the circle of the horizon, but now and then he glanced at the boy. Ned, brave, enduring and complaining so little, had taken a great hold upon his affection. They were comrades, tried by many dangers, and no danger yet to come could induce him to desert the boy.
 
The moon and stars were still very bright, and Obed, as his eyes traveled the circle of the horizon, saw no sign of the Indian approach. But that the Lipans would come with the dawn, or some time afterward, he did not have the slightest doubt. He glanced once more at Ned and then he smiled. The boy, while never meaning it, was sleeping soundly, and Obed was very glad. This was what he intended, relying upon Ned's utter exhaustion of body and mind.
 
All through the remaining hours of the night the man, with the bridles of the two horses in one hand and the rifle in the other, kept watch. Now and then he walked in a circle around and around the sleeping boy, and once or twice he smiled to himself. He knew that Ned when he awoke would be indignant because Obed let him sleep, but the man felt quite able to stand such reproaches.
 
Obed, staunch as he was, felt the weirdness and appalling loneliness of time and place. A wolf howled far out on the plain, and the answering howl of a wolf came back from another point. He shivered a little, but he continued his steady tread around and around the circle.
 
Dawn shot up, gilding the bare brown plain with silver splendor for a little while. Obed awoke Ned, and laughed at the boy's protests.
 
"You feel stronger and fresher, Ned," he said, "and nothing has been lost."
 
"What of you?"
 
"I? Oh, I'll get my chance later. All things come to him who works while he waits. Meanwhile, I think we'd better take a drink out of our water bottles, eat a quick breakfast and be off before we have visitors."
 
Once more in the saddle, they rode on over a plain unchanged in character, still the same swells and dips, still the same lonesome yuccas and mesquite, with the occasional clumps of bunch grass.
 
"Don't you think we have shaken them off?" asked Ned.
 
"No," replied Obed. "They would scatter toward dawn and the one who picked up the trail would call the others with a whoop or a rifle shot."
 
"Well, they've been called," said Ned, who was looking back. "See, there, on the highest ridge."
 
A faint, dark blur had appeared on a crest three or four miles behind them, one that would have been wholly invisible had not the air been so clear and translucent. It was impossible at the distance to distinguish shapes or detach anything from the general mass, but they knew very well that it was the Lipans. Each felt a little chill at this pursuit so tenacious and so menacing.
 
"I wish that we had some sort of a place like that in which we faced the Mexicans, where we could put our backs to the wall and fight!" exclaimed Ned.
 
"I know how you feel," said Obed, "because I feel the same way myself, but there isn't any such place, Ned, and this plain doesn't ever give any sign of producing one, so we'll just ride on. We'll trust to time and chance. Something may happen in our favor."
 
They strengthened their hearts, whistled to their horses and rode ahead. As on the day before the interminable pursuit went on hour after hour. It was another hot day, and their water bottles were almost emptied. The horses had had nothing to drink since the day before and the two fugitives began to feel for them, but about noon they came to a little pool, lying in a dip or hollow between the swells. It was perhaps fifty feet either way, less than a foot deep and the water was yellowish in color, but it contained no alkali nor any other bitter infusion. Moreover, grass grew around its edges and some wild ducks swam on its surface. It would have been a good place for a camp and they would have stayed there gladly had it not been for that threat which always hung on the southern horizon.
 
The water was warm, but the horses drank deeply, and Ned and Obed refilled their bottles. The stop enabled the pursuing Lipans to come within a mile of them, but, moving away at an increased pace, they began to lengthen the gap.
 
"The Lipans will stop and water their ponies and themselves just as we have done," said Obed. "Everything that we have to endure they have to endure, too. It's a poor rule that doesn't work for one side as well as the other."
 
"It would all look like play," said Ned, "if we didn't know that it was so much in earnest. Just as you said, Obed, they're stopping to drink at the pond."
 
A shadow seemed to pass between himself and the blazing glare of the sun. He looked up. It was a shadow thrown by a great bird, with black wings, flying low. Others of the same kind circled higher. Ned saw with a shiver that they were vultures. Obed saw them, too, and he also saw Ned's face pale a little.
 
"You take it as an omen," he said, "and maybe it is, but it's a poor omen that won't work both ways. They're flying back now towards the Indians, so I guess the Lipans had better look out."
 
Nevertheless, both were depressed by the appearance of the vultures and the heat that afternoon grew more intense than ever. The horses, at last, began to show signs of weariness, but Ned reflected that for every mile they traveled the Lipans must travel one also, and he recalled the words of Obed that chance might come to their aid.
 
Another night followed, clear and bright, with the great stars dancing in the southern skies, and Ned and Obed rode long after nightfall. Again the Lipans sank from sight, and, as before, the two stopped on one of the swells.
 
"Now, Obed," said Ned, "it is your time to sleep and mine to watch. I submitted last night and you must submit to-night. You know that you can't go on forever without sleep."
 
"Your argument is good," said Obed, "and I yield. It isn't worth while for me to tell you to watch well, because I know you'll do it."
 
He stretched himself out, folded between his blankets, and was soon asleep. The horses tethered to a lonesome yucca found a few blades of grass on the swell, which they cropped luxuriously. Then they lay down. Ned walked about for a long time rifle on shoulder. It turned colder and he wrapped his serape around his shoulders and chest. Finally he grew tired of walking, and sat down on the ground, holding his rifle across his lap. He sat on the highest point of the swell, and, despite the night, he could see a considerable distance.
 
His sight and hearing alike were acute, but neither brought him any alarm. He tried to reconstruct in his mind the Lipan mode of procedure. With the coming of the night and the disappearance of the fugitives from their sight they would spread out in a long line, in order that they might not pass the two without knowing it, and advance until midnight, perhaps. Then they, too, would rest, and pick up the trail again in the morning.
 
Ned did not know that time could be so long. He had not been watching more than three or four hours, and yet it seemed like as many days. But it was not long until dawn, and then it would be time for them to be up and away again. The horses reposed by the yucca, and, down the far side of the swell, close to the bottom of the dip, was another yucca. Ned's glance wandered toward the second yucca, and suddenly his heart thumped.
 
There was a shadow within the shadow of the yucca. Then he believed that it must be imagination, but nevertheless he rose to his feet and cocked his rifle. The shadow blended with the shadow of the yucca just behind its stern, but Ned, watching closely, saw in the next instant the two shadows detach and separate. The one that moved was that of a Lipan warrior, naked save for the breech-cloth and horrible with war paint. Ned instantly raised his rifle and fired. The Lipan uttered a cry and fell, then sprang to his feet, and ran away down the dip. In answer to the shot came the fierce note of the war whoop.
 
"Up, Obed, up!" cried Ned. "The Lipans are coming down upon us. I just shot at one of them in the bush!"
 
But Obed was up already, running toward the alarmed horses, his blankets under one arm and his rifle under the other. Ned followed, and, in an instant, they were on their horses with their arms and stores. From the next swell behind them came a patter of shots, and, for the second time, the war cry. But the two were now galloping northward at full speed.
 
............