The aeroplane, which proved to be of the biplane type, was evidently descending. At first, Bert had stopped to get a good look at it, but then, feeling that he had no time to lose, had remounted and resumed his journey.
But as he went along, he knew that the ’plane was still descending because of the increasing noise of its exhaust. In the same way he could tell that the machine was overtaking him, but at first the thought of trying to beat it never entered his head. Even in all his varied and exciting adventures he had never had a brush with such an adversary.
In an incredibly short time, however, the aeroplane was directly over his head, and he glanced upward. As he did so, the aviator leaned forward slightly, and waved his gloved hand. Bert waved in reply, and then the airman made a gesture which Bert interpreted, and rightly, as being a challenge.
Needless to say, our hero was not one to decline such an invitation, and accordingly he opened his throttle a little. Instantly his exhaust changed from its deep grumble to a harsh bark, and his machine leaped forward.
In answer to this, the aviator fed more gas to his motor, and his graceful machine soared forward in advance of Bert and the “Blue Streak.”
“Oho!” thought Bert, “this will never do,” and he gave his powerful machine more throttle, at the same time advancing the spark to the limit. That last fraction of an inch of spark sent his machine surging ahead like some wild thing let loose, and he leaned far down to escape the terrific resistance caused by the wind. The road streamed away behind him, and he had a thrill of exultation as he felt his machine leap forward in response to the slightest touch of the throttle.
His adversary in the air was not to be easily outdistanced, however, and he kept up with Bert, refusing to be shaken off.
Bert felt that now was the time to take the lead, if possible, and accordingly he opened the throttle almost to the limit, although he still held something in reserve.
The powerful motor responded nobly, and the machine skimmed over the sun-baked road at a terrific pace. The bird-man did his best to squeeze a little more speed out of his whirling motor, but was unable to cope with the rushing, roaring little speck down below him. At last he was forced to a realization of this, and abruptly cut down his speed.
Bert continued his headlong flight for a short time, but finding that the aeroplane did not pass him, concluded that it must have fallen behind. Accordingly, he slackened his own speed, but very gradually, for he was too wise to risk disaster by slowing down too suddenly.