"What—what is it?" cried the others in alarm.

"You've shot the lazy Mexican's burro. That's your Indian, Stacy Brown."

Juan, who had followed them out on the plain, uttered a wail and threw himself upon the body of his prostrate burro. The animal, it seemed, had recovered consciousness during the night, and in a half-dazed condition had wandered out on the plain. Stacy, while crouching down on the ground, had seen the head and long ears of the burro. He thought the ears were part of the head dress of a savage and let fly a volley of bullets at it.

"He—he isn't dead," shouted the fat boy. "See, I just pinked him in the ears."

And, surely enough, an examination revealed a hole through each ear. The holes were so close to the animal's head that it was reasonable to suppose the shot had stunned him, being already in a weakened condition from the sleepy grass.

The boys set to work to rouse the burro, which they succeeded in doing in a short time. Juan, with arm around the lazy beast's neck, led it back to camp, petting and soothing it with a chattering that they could not understand.

There was no more sleep in camp that night, though the boys turned in at the Professor's suggestion. Every little while, laughter would sound in one of the tents, as the others fell to discussing Stacy's Indian attack.

The next morning they were overjoyed to find that the ponies had awakened and were trying to get up.

"Lead them out of that grass, fellows," shouted Tad, the moment he saw the ponies were coming around. "We don't want them to make another meal of that stuff."

"Nor take another of Chunky's Rip Van Winkle sleeps," added Ned.