CHAPTER IV—ZACK GETS MAD
“Good gracious! He’s killed!” cried Jack, in horrified tones.
“If he is it will be your fault,” shouted Sam, shaking his fist at the two Boy Inventors; “you did it on purpose.”
“Did what on purpose?” demanded Jack rather angrily, climbing out of the car to the ground.
“Why, got in my way and made me lose control of my flying machine,” struck in a new voice.
It was that of Zack, who, at the same moment, crawled out from under the ruins of his queer invention.
He was scratched and shaken, but not injured, as could be readily seen when he stood up.
“I hope you are not badly hurt, Zack,” said Jack, in a mild tone.
Zack’s face was crimson with anger and mortification.
“It’s all your fault!” he roared. “I’ll get even on you. You just see if I don’t.”