The boys said nothing for a time, but when Hugh spoke of stealing the horses they looked at each other and grinned, with a delight that they could not conceal.

"What are you fellows laughing at?" said Hugh, when he saw them. "This ain't no joke; this is serious business."

"That's so, Hugh," said Jack, "but I guess we were both laughing because Joe suggested that if these were horse thieves, the best thing we could do would be to go and steal the horses."

"Well," said Hugh, "I reckon that's what we've got to do; but I do hope that we can get 'em all. Now, to do that, we've each one of us got to do his part, and to do it the best way we know how. I'd rather have done it last night than do it to-night, because last night those fellows were tired, and to-night they'll sleep lighter; they may hear the horses walking off; but all the same, I don't believe they will. Now, you boys better saddle your horses, and we'll make up the packs and put 'em all together here, and put hobbles on the pack animals, so that there'll be no time lost in catching them, when we come back. You see, if we have to stop here it'll take quite a time to pack, and if we leave any horses up there for those fellows to ride, they may follow us for a way, and there's no saying what may happen. I don't want either of you boys to get shot, and I'm sure I don't want to get shot myself."

After the meal was eaten, the packs were quickly made up, the pack horses were driven in, caught and hobbled, and the afternoon was not half gone when the three were riding back up the valley.

Jack and Joe were somewhat impatient, but Hugh checked them. "There's no hurry," he said, "we can't do anything till the middle of the night. Those fellows may sit up round the fire for quite a while, and they might notice if the horses were moving much. I am in hopes that Joe and I can go up there afoot, and cut loose their riding horses, and then just slowly and quietly shove the whole bunch down until we get them well below the camp, and then we can start them at a good gait. There'll be no trouble about keeping them going fast, for we've got plenty of riding horses in the bunch there, and we can change often."

The sun had not set when they entered the valley. They followed it up for what seemed to the boys a long distance, but at length Hugh stopped and dismounted, saying, "The camp is only about a mile above here."

It was now dark night. Hugh sat down on the ground, holding his horse's bridle, and began to fill his pipe, and the boys sat close to him.

"Now," he said, "I am going to take you boys up just where I came down this morning, and we'll get around these horses at the upper end of the valley, and work them down slowly on the other side from the camp. I'll go over and cut loose the horses that are picketed, and then we'll work on slowly until we get down well below this. Then we can go. I don't want either of you boys to shoot unless you have to; and if you have to, I'd rather have you shoot not to kill, but to cripple. If you get a chance, shoot at the man's shoulder, so he can't use his gun. On the other hand, I've heard that Dowling is handy with a gun in either hand. We've got to take some chances, of course. I don't expect we'll see anything of those fellows without we leave them a horse or two. If we do that, why then to-morrow morning they'll come on. You boys keep right close after me, and try to make as little noise as you can. Don't let your horses call. They may want to when they smell the others, but keep them from doing it if you can."

Keeping well to the left, and close in under the timber, Hugh rode slowly along, and after a time they saw the light of the fire flickering on the other side of the valley, and occasionally could see shadows passing in front of it. As they moved along, they saw, from time to time, horses feeding, and once rode close to an old mare, whose little colt, not seeing them until they were near, gave a great bound into the air and rushed away for a few yards.