“Sure,” answered Jerry, with a laugh. “Get aboard,” and the mining prospector did so, but with evident reluctance.

“Let her go!” cried Jerry to Ned, who was in the engine room, with Bob, while the tall lad held the steering wheel. The big propellers whizzed around, the motorship quivered from end to end, and then began to shoot across the ground on the starting wheels.

“Gee whizz! We’re moving!” cried Harvey Brill.

Jerry yanked back on the lever that adjusted the elevation rudder. The nose of the Comet was pointed upward and she shot into the air on a slant.

“We’re going up!” yelled the astonished and almost delighted Mr. Brill.

“I told you we would,” asserted his partner, as if it was an every-day occurrence with him.

Rapidly the craft soared upward, and in a few minutes it was floating several hundred feet above the town of Cresville. Higher and higher it mounted.

“How’s she running, Ned?” asked Jerry, from the pilot house.

“Fine. The motor’s going like a sewing machine. Is she steering all right?”

“Couldn’t be better. I guess she’ll do.”