Shadows began to gather under the overhanging vines and creepers. Only the tips of the giant ceibas showed a glint of sunlight. The day was fast closing. Once more she ran on and on; and then, as she turned a curve, a tall, dark form stood out of the green, and blurred the trail.

“Augustine! Wait! Wait!” she cried.

The man swung round, and ran back. Muella, panting for breath and with her hand pressed over her heart, met him.

Señora! What has happened?” he exclaimed.

“Wait! My breath’s gone!” she gasped. “Wait! But keep on—we—we mustn’t stop!”

Muella took a fleeting upward glance at him. It was so hurried that she could not be positive, but she thought she had caught a strange, paling flush of his bronzed face and a startled look of his dark eyes. Why should his meeting her unexpectedly cause more than surprise or concern?

As she trotted along, she shot another quick glance up at him. He seemed unmistakably agitated; and this disconcerted her. She heard his amazed questions, but they were mostly unintelligible.

She had thought of nothing save to catch up with him and to blurt out that Tigre was on his trail, and why. The words now halted on her lips. It was not easy to tell him. What would he say—what would he do? A few moments back, he had been only one of Bernardo’s herders—the best, truly, and a man whom it was pleasing to look upon, but he had been nothing to her. He alone of the vaqueros had not smiled at her, and this piquing of her pride had gained him notice which otherwise he might never have got.

As she pattered on, slowly regaining her breath, the presence of the man seemed to grow more real. It was well that she knew Augustine cared nothing for her, else she could not have told him of Bernardo’s unjust suspicions.

The trail opened into a clearing, where there were several old palm-thatched huts, a broken-down corral, and a water hole. The place had once been used by Bernardo’s herders, but was now abandoned and partly overgrown. At this point, Augustine, who for a time had silently stalked beside Muella, abruptly halted her.