"They're not. They're trying each other out—sparring for an opening as it were. You'll see in a minute."

The fighters returned to the charge. They did not flinch this time. With a rush they came together, rearing in the air, jaws wide apart. Their fore-feet struck out. Both stallions broke, wheeled and kicked viciously.

Neither had landed a blow.

Next time they came at each other walking on their hind feet. They were sparring with their fore feet like fighters in the ring, their hoofs making such rapid thrusts that the eye could scarcely follow them. Satan reached for the head of his antagonist with a quick sweep. The white stallion blocked the blow cleverly.

They Were Sparring with Their Fore Feet like Fighters in the Ring.

Yet, in doing so, he had left an opening. Satan took instant advantage of it. The black stallion's head shot forward. It reminded Tad of a serpent striking at its victim.

"Ah! He landed!" exclaimed the cowboy.

A fleck of crimson on the creamy neck of the Angel showed where the vicious teeth of the black stallion had reached him. Yet, no sooner had the wound been inflicted than the Angel whirled. It was like a flash of light.