The dogs had the strength born of insane fighting spirit.

At last we pulled them to where Don lay, half-stunned, and with an arm tight round each, I held them while Frank turned to help Jones.
The disheveled Jones, bloody, grim as death, his heavy jaw locked, stood holding to the lasso.

The cougar, her sides shaking with short, quick pants, crouched low on the ground with eyes of purple fire.
"For God's sake, get a half-hitch on the saplin'!" called the cowboy.
His quick grasp of the situation averted a tragedy.

Jones was nearly exhausted, even as he was beyond thinking for himself or giving up.

The cougar sprang, a yellow, frightful flash.