Exultant in his victory over the cougar, the Prairie King had relaxed his vigilance.

More often now his head was down, cropping the grass like the rest of the herd.

Henry and Paul believed that they could see the grass rippling as the new and more cunning enemy crept forward.

But it was only agile fancy--they were too far away.
"What ever happens it's bound to happen soon," said Henry.
Even as he spoke the man in the grass sprang to his feet, threw forth his right arm, and the rope shot out like a snake uncoiling itself as it sprang.

Both Paul and Henry felt a pang when they saw the loop enclose the neck of the noble horse, while the man himself and his comrades uttered loud shouts of exultation.
"He has caught him!" exclaimed Paul sadly.
"Yes," said Henry, "and I'm sorry, but it was a wonderful feat of skill and patience!" The frightened herd ran away, and the white stallion reared and struggled, his great eyes red and distended with rage and astonishment.