"I didn't see you," he told her.

Now she flashed another quick upward glance at him as though seeking for a reason lying back of his words.

"I saw you" she said steadily. "Twice. First from the top of a hill half a dozen miles back when you got down to look at your horse's foot. Did he pick up a stone?"

His eyes opened in surprise.

"I didn't get off to look at my horse's foot. And he didn't pick up anything."

"The second time," she continued, "was just when you had come to the last stream. I thought that you were going to turn off into the cañon. I saw that your horse was limping."

He shook his head. She must have seen that other fellow whose tracks
Thornton had for so long seen following the tracks of her pony.

"What made you think you recognized me?" he asked.

"I didn't think. I knew."

"Then … how did you know?"