Probably the silence had been equally welcome to Prather in charting his own course in the now unavoidable interview. He looked around slowly, and he was smiling with a trace of the satire that Jack had seen in the elevator, but smiling watchfully in a way that covers the apprehension of a keen glance. And he saw features that were calm and eyes that were still as the sky.

"How do you do?" he answered; and paused as one who is about to slip a point of steel home into a scabbard. "How do you do, brother?" he added, as if uttering a shibboleth that could protect him from any physical violence.

"Brother! Brother! Yes!" repeated Jack, with dry lips.

This shaping of conviction into fact so nakedly, so coolly, made all the desert and the sky swim before him in kaleidoscopic patches of blue and gray, shot with zigzag flashes. He half reeled in the saddle; his hands gripped the pommel to hold himself in place. It was as if a long strain of nervous tension had come to an end with a crack. Prather's smile took a turn of deeper satisfaction. It was like John Wingfield, Sr.'s after Jack had left the library.

"This is the first time we have ever met to speak," said Prather, easily.

"Yes!" assented Jack, the gray settling back into desert and the blue into sky and the zigzag flashes becoming only the brilliance of late afternoon sunshine.

"Certainly it is time that we got acquainted, brother," said Prather.

"It is!" agreed Jack. "It is time that I knew your story!"

"Which you have hardly heard from your—I mean, our father!" The pause between the "your" and the "our" was made with an appreciative significance. "Well, you see, I was the brother who had the mole on his cheek!"

"Yes—pitifully yes!" said Jack, with a kind of horror at the expression of this face in his father's likeness, no less than at the words.