Now, down the rocky, half-broken trail she picked her way as daintily as any debutante tiptoeing down a great stairway to the ballroom. Life had been easy for Mary since that thousand-mile struggle to overtake Canby, and now her sides were sleek from good feeding and some casual twenty miles a day, which was no more to her than a canter through the park is to the city horse. The eye which had been so red-stained and fierce during the long ride after Canby was now bright and gentle. At every turn she pricked her small sharp ears as if she expected home and friends on the other side of the curve. And now and again she tossed her head and glanced back at the master for a moment and then whinnied across some echoing ravine. It was Mary's way of showing happiness, and her master's acknowledgment was to run his gloved left hand up through her mane and with his ungloved right, that tanned and agile hand, pat her shoulder lightly. Passing to the end of the down-grade, they reached a slight upward incline, and the mare, as if she had come to familiar ground, broke into a gallop, a matchless, swinging stride. Swerving to right and to left among the great boulders, like a football player running a broken field, she increased the gallop to a racing pace. That twisting course would have shaken an ordinary horseman to the toes, but Pierre, swaying easily in the saddle, dropped the reins into the crook of his left arm and rolled a cigarette in spite of the motion and the wind. It was a little feat, but it would have drawn applause from a circus crowd. He spoke to the mare while he lighted a match and she dropped to an easy canter, the pace which she could maintain from dawn to dark, eating up the gray miles of the mountain and the desert, and it was then that Red Pierre heard a gay voice singing in the distance. His attitude changed at once. He caught a shorter grip on the reins and swung forward a little in the saddle, while his right hand touched the butt of the revolver in its holster and made sure that it was loose; for to those who hunt and are hunted every human voice in the mountain-desert is an ominous token. The mare, sensing the change of her master through that weird telegraphy which passed down the taut bridle reins, held her head high and flattened her short ears against her neck. The song and the singer drew closer, and the vigilance of Pierre ceased as he heard a mellow baritone ring out. "They call me poor, yet I am rich In the touch of her golden hair, My heart is filled like a miser's hands With the red-gold of her hair. The sky I ride beneath all day Is the blue of her dear eyes; The only heaven I desire Is the blue of her dear eyes."