"Yes; it will take only a few minutes."

"But I don't ride, you know."

"You don't ride?" The girl looked at him in blank amazement. "I don't think I ever saw a man before who didn't ride."

He laughed indulgently. Something in her voice and manner touched his sense of humor. "I'm very sorry. I know I ought to," he said in mock humility.

"Oh, well; we can drive. I'll have Pablo bring a rig." She explained what she wanted to the Mexican in his native tongue, and this time he mounted her horse and rode away.

When the man returned a little later with a span of restless, half-wild broncos hitched to a light buggy, the girl stepped into the vehicle and took the reins as a matter of course. With a low chuckle of amusement the engineer took his place at her left. He was beginning really to enjoy the situation. Shying and plunging the team demanded all of Barbara's attention but she managed to steal a look at her silent companion now and then, as if expecting him to show signs of nervousness. Willard Holmes, on his part, was wrapped in silent admiration of her strength and skill.

"They'll cool down in a little while," the girl volunteered, as if to reassure her guest, after a particularly wild break on the part of the horses. But on the extreme edge of town, where the wagon road runs closest to the railroad track, a passing switch engine proved too much for the excited team. In a moment the frightened animals were running toward the Mesa at full speed. With all her strength Barbara struggled to regain control, but her arms were a woman's arms and the horses, quick to recognize their advantage, put back their ears and ran the faster in mad defiance.

The girl was not frightened; she was annoyed. "I—I'm afraid they are running away," she gasped at last.

To her surprise a hearty laugh was the only answer to her confession. She shot a quick glance over her left shoulder. Her companion was leaning back in his seat, his merry face expressing the keenest enjoyment.

Then the girl felt a big hard shoulder pressing against her; long powerful arms stretched over hers; and two masterful hands closed on the reins above her cramped fingers. She relinquished her hold and shrank back out of the way with a sigh of relief and—yes, a look of admiration as the horses, with a few wild leaps and ineffectual attempts to run again, settled down to a more rational gait.