The sudden jerk hurled the boy through the air.
"Look out!" warned the cowboy.
His warning came too late.
Tad was thrown with great force full against the heels of another broncho.
"He'll be killed!" cried Professor Zepplin.
Up went the pony's hind feet and with them Tad Butler. The pony came down as quickly as it had gone up, but Tap kept on going. He had been near the wire corral when he was jerked against the animal's feet.
The pony kicked a clean goal and Tad was projected over the wire fence, landing in a heap several feet outside the corral.
The lad was on his feet almost instantly. When they saw that he had not been seriously injured the boys set up a defiant yell.
"Hurt you any?" grinned the cowboy.
"Only my pride," answered Tad, with a sheepish smile. "I never had that happen to me before."