The two little boys managed to dip up a drink in the half a cocoanut shell, and then they looked about them. Night was coming on, and the sun had set some little time before.
"Hark! what's that?" asked Russ, listening.
"Thunder?" asked Laddie. "Is it thunder?"
"It sounds like it," said Russ, "but I don't see any lightning. I guess we'd better go home, anyhow."
They started away from the spring, and then Laddie suddenly cried:
"Oh, look! Look at Uncle Fred's cows all running away!"
Russ looked, and saw a big bunch of cattle rushing and thundering across the plain. It was the hoofs of the cattle beating on the ground that made the sound like thunder.
"Oh, what is it? What is it?" cried Laddie. "What makes 'em run like that?"
"It's a cattle stampede!" shouted a voice, almost in the ears of the boys. "Look out! Up you come!"