3 books to know Western. Zane Grey

positively that Jerry had been leading Night on the right-hand side of the trail. The racer was now on the side to the left. No—it was Black Star. But, Venters argued in amaze, Jerry had been mounted on Black Star. Another clearer, keener gaze assured Venters that Black Star was really riderless. Night now carried Jerry Card.

      “He's changed from one to the other!” ejaculated Venters, realizing the astounding feat with unstinted admiration. “Changed at full speed! Jerry Card, that's what you've done unless I'm drunk on the smell of sage. But I've got to see the trick before I believe it.”