He rubbed his bloodless hands slowly together, and when he spoke his voice was sharp and quick and wholly impersonal. "Tell me the symptoms!"

"Can't we talk those over on the way to the ranch? Even if we start now it will be dark before we arrive."

"But," protested the doctor, "I have not yet decided—this precipitancy—"

"Oh," she said, and flushed. He perceived that she was on the verge of turning away, but something withheld her. "There is no other physician within reach; my father is very ill. I only ask that you come as a diagnostician, doctor!"

"But a ride to your ranch," he said miserably. "I presume you refer to riding a horse?"

"Naturally."

"I am unfamiliar with that means of locomotion," said the doctor with serious eyes, "and in fact have not carried my acquaintance with the equine species beyond a purely experimental stage. Anatomically I have a superficial knowledge, but on the one occasion on which I sat in a saddle I observed that the docility of the horse is probably a poetic fallacy."

He rubbed his left shoulder thoughtfully and saw a slight tremor at the corners of the girl's mouth. It caused his vision to clear and concentrate; he found that the lips were, in fact, in the very act of smiling. The face of the doctor brightened.

"You shall ride my own horse," said the girl. "She is perfectly gentle and has a very easy gait. I'm sure you'll have not the slightest trouble with her."

"And you?"