"You must hold tight," warned Peggy.

"I'm doing that," said Jeb.

And then with the same sickly grin:

"Say, miss, does it really fly?"

"Of course it does. As that old man said, how could it have got here if it didn't."

"I guess I'd better go home and git my coat," said Jeb, trying to climb out.

His demeanor had completely changed since he had climbed into the chassis. Something in its well-cushioned seats and the sight of the powerful engine and propeller seemed to have changed his mind about the capabilities of the Golden Butterfly.

But it was too late. With a roar the engine started. Instantly the little plateau was deserted. The mountaineers were all behind trees.

Jeb rushed for the side of the car.

"Sit down!" screeched Peggy, really fearing he would fall over.