A lantern was hanging at the front of the tent, and, striking a match, Blake lit this. In the meantime, however, Fred saw a form disappearing through the hole in the back of the tent.

“There he goes!” he yelled to Jack.

“Stop him!”

This suggestion was unnecessary, for Fred was already crawling through the opening. But, being aroused from a sound sleep so suddenly, he was still somewhat dazed, and by the time he had got on the outside of the tent and was on his feet, Gabe Werner was a good distance away and running like a deer.

“Come back here!” shouted Fred, looking after the flying figure.

In a few seconds Fred was joined by Jack. By this time the hubbub around the officers’ tent had been heard by others, and even Professor Grawson was awakened from his nap.

“What’s the trouble here?” demanded the professor, leaping from the tonneau of the automobile and hurrying in that direction.

“Two outsiders came into our tent,” said the young captain.

“What did they want?”

“I guess they were going to play some trick. But I woke up and scared them off.”