It would not do to let him lie there in the cool mold by the water, for he knew that the greatest danger in overheating a horse is that it may cool too quickly afterward.
He stooped directly in front of Satan and swept up an arm in command; it brought only a flicker of the eyelid, the eyelid which drooped over a glazing eye.
"Up!" he commanded.
One ear again pricked; the head lifted barely clear of the ground; the forelegs stiffened with effort, trembled, and were still again.
"Bart!" shouted the master, "wake him up!" The voice could not have carried to the wolf through the uproar of the waters, but the gesture, the expression brought home the order, and Black Bart came to his feet, staggering.

Right against the nose of Satan he bared his great teeth and his snarl rattled.

No living creature could hear that sound without starting, and the head of Satan raised high.
Still before him Bart growled and under his elbow and his chest the hands of the master strained up.

He swayed with a snort very like a human groan, struggled, the forelegs secured their purchase, and he came slowly to his feet.

There he stood, braced and head low; a child might have caught him by the mane and toppled him upon his side, and already his hind legs were buckling.
"Get on!" cried Barry.
There was a lift of the head, a quivering of the tensed nostrils, but that was all.