Afterward, when Kirby Lane looked back upon the weeks spent in Denver trying to clear up the mysteries which surrounded the whole affair of his uncle's death, it seemed to him that he had been at times incredibly stupid. Nowhere did this accent itself so much as in that part of the tangle which related to Esther McLean.

From time to time Kirby saw Cole. He was in and out of town. Most of his time was spent running down faint trails which spun themselves out and became lost in the hills. The champion rough rider was indomitably resolute in his intention of finding her. There were times when Rose began to fear that her little sister was lost to her for always. But Sanborn never shared this feeling.

"You wait. I'll find her," he promised. "An' if I can lay my hands on the man that's done her a meanness, I'll certainly give them hospital sharks a job patchin' him up." His gentle eyes had frozen, and the cold, hard light in them was almost deadly.

Kirby could not get it out of his head that James was responsible for the disappearance of the girl. Yet he could not find a motive that would justify so much trouble on his cousin's part.

He was at a moving-picture house on Curtis Street with Rose when the explanation popped into his mind. They were watching an old-fashioned melodrama in which the villain's letter is laid at the door of the unfortunate hero.

Kirby leaned toward Rose in the darkness and whispered, "Let's go."

"Go where?" she wanted to know in surprise. They had seated themselves not five minutes before.

"I've got a hunch. Come."

She rose, and on the way to the aisle brushed past several irritated ladies. Not till they were standing on the sidewalk outside did he tell her what was on his mind.

"I want to see that note from my uncle you found in your sister's desk," he said.