"Whoa!" he cried. "Whoa, I say!"
"Let the horse go, do you hear?" ejaculated Allen, sharply.
"I won't do it! Darry! Jeff! Come here, why don't you?"
The others leaped into the brush. Allen saw that affairs were turning against him. He leaned forward to Jasper's neck.
Smack! Mangle caught a sharp blow full across his mouth. It came so quickly that he staggered back and his hold was loosened.
"On, Jasper, on, my boy!" cried Allen, slapping the animal with his palm. "Come, Rush! Come, Rush!" he added to Chet's horse, which stood close beside.
Off went Jasper with a bound, and Rush followed at his heels.
"Stop him! Hang the measly luck!" roared Saul Mangle. "Darry! Jeff! What are you at?"
As he cried out, the leader of the horse thieves felt for his pistol. But before the weapon could be drawn both horses and Allen had disappeared behind a clump of cottonwoods.
"We had bettah follow him on de mustangs," suggested the negro. "He can't ride"
