Looking in the direction, he made out the form of Sid Todd, riding like the wind toward him.

Behind him came Roger and Phil, but the two boys were soon stopped and told to go back.
"I'll head 'em off!" yelled Todd, coming closer.

And waving his big sombrero in one hand he commenced to fire his pistol with the other.

He shot rapidly, aiming for the ground and sending streaks of dust into the air.

All the time he yelled at the top of his lungs, and, understanding the move, Dave yelled too, and swung one arm wildly.
Soon the leaders of the herd took notice and came to a sudden halt.