as the muffler was open, and Tom, looking down, saw Boomerang awaken with a jump. The mule was so frightened that he started off on a dead run, swinging the rickety, old wagon along behind him.
Eradicate Sampson, who had been feeling his muscle since he discovered what he thought was his marvelous strength, saw what was happening.
"Whoa, dar, Boomerang!" he shouted. Then, as the tailboard of the wagon swung past him, he reached out and grabbed it. Perhaps he thought he could bring the runaway mule up standing, but, if he did, he was grievously disappointed. Boomerang pulled his master along the gravel walk, and kept running in spite of Eradicate's command to "whoa, dar!"
It might have gone hard with him, had not Garret Jackson, the engineer, running in front of Boomerang, caught the animal. Eradicate picked himself up, and gazed sadly at his arms. The navigators of the air could not hear what he said, but what he thought was evident to them.
Then, as Mr. Sharp deadened the explosions of the powerful motor. Tom, looking at a gauge, noted that their height was seven hundred feet.
"High enough!" called Mr. Sharp, and it was time, for Mr. Damon, in spite of his resolution, was getting pale.
