"You think it is a—a——" began Tad.

"A stampede? Yes; I should not be surprised."

"We must go," announced the lad, rising promptly.

"Why go?" asked Margaret.

"We may be needed."

"But my men have started already," replied the rancher. "They surely will be help enough."

"Mr. Stallings will expect us. We may be able to be of some assistance."

"Well, if you must. Yes; you are right. Business is business, even when one is out on a pleasure trip. It's a good sign in a young man. Tell your foreman that he may call upon us to any extent."

"Thank you, I will," replied Tad.

Bidding their hosts a hasty good night, and promising to be on hand at the appointed hour on the following day if the condition of the herd permitted, the Pony Rider Boys ran for their ponies. In a few moments they were racing toward camp. They, too, were now able to hear the short, spiteful bark of the six-shooters.