"It's a cattle stampede!"

Before Russ and Laddie had a chance to think what this meant, though Uncle Fred had told them in his stories, each little boy felt himself caught up in strong arms, and set on a horse in front of a cowboy.

What had happened was that two of Uncle Fred's cowboys had ridden along when Russ and Laddie were at the spring, and, fearing the little lads might get into danger, they had taken them up on their saddles.

"Where are we going?" asked Laddie, undecided whether or not to cry.

"We are going home—that is, I'm going to take you home," said the cowboy, smiling down at Laddie. "Then we'll try to stop these cattle from running away."

"Are the cattle running away?" asked Russ of the cowboy who held him so firmly in front on his saddle.

"That's what they are, little man," was the answer. "Something frightened the steers, and they started to run. We've got to stop 'em, too!"

"Will they run far?" asked Russ.

"Well, sometimes they do and sometimes they don't," answered the cowboy. "It all depends. Out here on the plain, where there isn't any high land or cliffs for them to topple over, there isn't much danger. The cattle will run until they get tired out. But, of course, some of 'em get stepped on and hurt, and that's bad. And sometimes our cattle get mixed in with another herd, when they stampede this way, and it's hard to get 'em unmixed again. But we're going to take you two boys to the ranch house, and then we'll try to stop the stampede. What were you doing out here, anyhow?"

"Looking at the spring," answered Russ. "It's gone dry again."

"Has it?" asked the cowboy. "Then that means we'll lose more cattle, I reckon. Maybe the men started this stampede."

"No, I think this stampede was started by Indians," said the cowboy who had Laddie, and who had just ridden up alongside Russ in order to speak to "his cowboy" as Russ afterward called him.

"Indians!" cried Russ.

"Yes. Sometimes they come off the reservation, and start to travel to see some of their friends. A band of Indians will stampede a bunch of cattle as soon as anything else."

"Could we see the Indians?" asked Laddie.

"Well, maybe you can, if they come to the ranch. Some do to get something to eat," was the answer. "But hold tight now, we've got to ride faster, if we want to get help in time to stop the runaway cattle."

So the two little boys held tightly to the horn, which is that part of the saddle which was directly in front of them. This horn is what the cowboys fasten their lassos around when they catch a wild steer or a pony.

Behind the boys could be heard the thunder of the hoofs of the stampeding steers. They were running close together, and, even in the half-darkness of the evening, a big cloud of dust raised by the many feet could be seen.

"What's the matter?" cried Uncle Fred, as the two cowboys rode up to the ranch with Laddie and Russ.

"Stampede!" was the answer. "Big bunch of cattle running away."

"Oh, my!" exclaimed Uncle Fred. "Well, get right after 'em! Stop 'em!"

And this is what the cowboys did. The two who had seen the stampede first, and ridden in to tell the news, bringing Laddie and Russ on the way, were joined by other cowboys. They then rode toward the rushing cattle, to head them off, or turn them back.

A stampede on a ranch means that a lot of steers or horses become so frightened over something that they all run together, and don't pay any attention to where they are going. If one of their number falls, the others trample right over it. So, too, if a cowboy on his horse got too close to the stampeding cattle, he would be trampled on.

To stop a stampede the cowboys try to turn the cattle around. This they do by riding along in front of them, as close as they dare, firing their big revolvers. They try to scare the steers from keeping on. Then if they can turn the front ones back, and get them to run in a circle—"milling," it is called—the others will do the same thing. The cattle stop running, quiet down and can be driven back where they came from.

It is hard work. Still it has to be done.

It soon grew so dark that the children and grown folk, watching from the house, could see nothing. Mrs. Bunker wanted the six little Bunkers to go to bed, but the four older children wanted to stay up and hear what the cowboys had to say when they came back.

"Well, you may stay half an hour," their father told them. "If they aren't back then off to bed you go!"

However, the cowboys came back about fifteen minutes later, saying they had stopped the stampede and turned the cattle back where they belonged.

"That's good," said Uncle Fred. "What with the fire and a stampede these are busy times at Three Star Ranch."

"And the spring is dried up again!" said Russ. "We forgot to tell you, Uncle Fred."

"The spring dried up once more? Well, I suppose that means more trouble and more cattle missing. I do wish I could find out this puzzle. Laddie, why can't you solve that riddle for me?"

"I don't know, Uncle Fred. I wish I could," said Laddie, as he was taken off to bed.

The next day Uncle Fred and Daddy Bunker went out to look at the spring, to take some more pictures of it with the camera, and see if they could find any reason for its going dry. Laddie and Russ and Vi, who usually wanted to go where her twin did, went with them, the other children staying at home to play.

"Yes, there's hardly any water in it," said Uncle Fred, as he looked down in the rocky basin at which Laddie and Russ had taken a drink the night before. "I think we'll have to dig back of those rocks," he said to Daddy Bunker, "and see what's behind them."

"It might be a good plan," agreed the children's father. "There may be some sort of secret channel through which the water runs out under the ground. I think I would dig, if I were you."

"I will," said Uncle Fred. "I'll go back to the house now and get picks and shovels. You can wait here for me."

"I'll come with you," said Daddy Bunker. "The children will be all right here."

"I'll go with you, Daddy," said Vi. "I must look after my mud pie I left in the sun to bake."

Uncle Fred started back toward the ranch buildings with Mr. Bunker and Vi, while Laddie and Russ sat down near the spring to wait. There was just a faint trickle of water coming through the rocks.

Suddenly the boys were surprised to hear a sort of grunt behind them, and, turning quickly, they saw a figure such as they had often seen in pictures.

"An Indian!" gasped Russ. "Oh, Laddie! It's an Indian!"