"An' I'll JUMP back to de ground; dat's what I'll do. I ain't goin' t' wait until I falls, no sah! An' I ain't gwine t' do none ob dat ball-playin' yo' speak ob, Massa Swift. It's no time t' play ball when yo' life am in danger. I'se gwine t' jump."

"Sit still!" cried Tom, for the colored man was about to spring from his seat. "There's no danger! I didn't say anything about playing ball. I said I'd VOL-PLANE back to the earth. We'll be there shortly. I'll take you down safe. Sit still, Rad!"

He spoke so earnestly that the fears of his colored passenger were quelled. With a quick motion Tom threw up the head planes, to check the downward sweep. The Butterfly shot forward on a gradual slant. Repeating this maneuver several times, the young inventor finally brought his machine to within a short distance of the earth, and, also, considerably nearer his own home.

"I wonder if we can make it?" he murmured, measuring the distance with his eye. "I think so. I'll shoot her up a bit and then let her down on a long slant. Then, with another upward tilt, I ought to fetch it."

The monoplane tilted upward. Eradicate gave a cry of terror. It was stilled at a look from Tom. Once more the air machine glided forward. Then came another long dip, another upward glide and the Butterfly came gently to earth almost on the very spot whence it had flown upward a few minutes before.

Eradicate gave one mad spring from his seat, almost before the bicycle wheels had ceased revolving, as Tom jammed on the earth-brake.

"Here, where are you going, Rad?" cried the lad.

"Whar am I goin'? I'se goin' t' see if mah mule Boomerang am safe. He's de only kind ob an airship I wants arter dis!" and the colored man disappeared into the shack whence came a loud "hee-haw!"

"Oh, pshaw! Wait a minute, Rad. I'll soon have the motor fixed, and we'll make another try. I'll take you over to Mr. Damon's with me."

"No, sah, Massa Tom. Yo' don't catch dis coon in any mo' airships. Mah mule am good enough fo' me!" shouted Eradicate from the safe harbor of the mule's stable.