Then hook your feet under him, hard as you can, an' stick on." If Helen had not been so frightened for Bo she would have been able to enjoy her other sensations.

Creeping, cold thrills chased over her as Bo, supple and quick, slid an arm and a leg over Pony and straightened up on him with a defiant cry.

Pony jerked his head down, brought his feet together in one jump, and began to bounce.

Bo got the swing of him this time and stayed on.
"You're ridin' him," yelled Dale.

"Now squeeze hard with your knees.
Crack him over the head with your rope....