Looking about him curiously it chanced that he found something that drove a puzzled frown into his eyes. It had caught in the frayed edge of the rug, and to have been so caught and so left meant that it had been done during the struggle he had already pictured. He took it up into his hand, trying to understand. For it was the rowel of a spur, a tiny, sharp, shining rowel that had come loose from a spur he remembered very well. And he remembered, too, that Winifred Waverly had had her spurs on when she came out to him at the barn!

"It happened while I was out after the horses!" He sat down, the shining spiked wheel lying in the palm of his hand, his brows drawn heavily. "While I was out there … it happened. Some jasper came in here, there was some sort of a tussle … and she didn't say a damned word about it!"

Yes, he was certain now that something had happened during the brief time between his going out for the horses and the girl's coming to him at the barn. Something that had changed her, that had killed her friendliness toward him, that had made her cold and cruelly different.

"The same man who slipped his knife across my horse's foot came in here and saw her while I was out for the horses," he said slowly. "The same man. It must have been. And she could tell me who it was and she didn't. Why? After they had struggled here, too! Why?"

He could see no reason in it all, no reason for her silence, no reason for a man's malicious cruelty to a horse. Nor were these the only things which he could not understand. Groping for the truth, he began carefully to run over the things which had seemed strange to him and which now struck him as being connected in some plan darkly hidden.

The girl was Henry Pollard's niece. He began with that fact. She was on her way to Pollard's and on an errand which the banker Templeton had called mad and dangerous. Some man had followed her, a man whom she had twice seen on the trail and whose outfit resembled Thornton's, resembled it too closely to be the result of chance! The same headstall with the red tassel, the same grey neck-handkerchief, a sorrel horse….

"By God!" whispered the cowboy, a sudden light in his eyes, "he lamed my horse so it would limp the same as his! So she'd be sure she had seen me on the trail behind her! And when she came out and saw my horse limping she knew I had lied to her!"

But why? Why? What lay back of all this?

In the end he put out the light, slipped the spur rowel into his vest pocket, and went out to his horse. Then when an hour's search brought him no nearer to the hidden truth for which he was groping, he gave up trying to pick up this other man's trail in the rocky soil about Harte's place and turned back toward the south-east and his own ranch.

"I'm going to have a talk with you, Miss Grey Eyes," he said softly. "I've got to give you back your spur, and I'm going to ask you some questions."