Around and around the air course she circled. The wind appeared to be rushing beneath the planes and rudders with the velocity of a hurricane. Had it not been for the face protectors they wore, Tom and Mr. Damon could not have breathed. For ten minutes this fearful speed was kept up. Then Tom, knowing he had run the motor to the limit, slowed it down. Next he shut it off completely, and prepared to volplane back to earth. The silence after the terrific racket was almost startling. For a moment neither of the aviators spoke. Then Mr. Damon said:

"Do you think you did it, Tom?"

"I don't know. We'll soon find out. They'll have the record." And he motioned toward the earth, which they were rapidly nearing.

Chapter Fifteen

A Noise in the Night

"Well, did I make it? Make any kind of a record?" asked Tom eagerly, as he brought the trim little craft to a stop, after it had rolled along the ground on the bicycle wheels.

"What do you think you did?" asked Mr. Jackson, who had been busy figuring on a slip of paper.

"Did I get her up to ninety miles an hour?" inquired Tom eagerly. "If I did, I know when the motor wears down a bit smoother that I can make her hit a hundred in the race, easily. Did I touch ninety, Mr. Jackson?"

"Better than that, Tom! Better than that!" cried his father.