Another time, seeking the library for Andean reference, Graham came upon Paula, sprawled gracefully over a sheet of paper on a big table and flanked by ponderous architectural portfolios, engaged in drawing plans of a log bungalow or camp for the sages of the madroño grove.

“It’s a problem,” she sighed. “Dick says that if I build it I must build it for seven. We’ve got four sages now, and his heart is set on seven. He says never mind showers and such things, because what philosopher ever bathes? And he has suggested seriously seven stoves and seven kitchens, because it is just over such mundane things that philosophers always quarrel.”

“Wasn’t it Voltaire who quarreled with a king over candle-ends?” Graham queried, pleasuring in the sight of her graceful abandon. Thirty-eight! It was impossible. She seemed almost a girl, petulant and flushed over some school task. Then he remembered Mrs. Tully’s remark that Paula was the most mature child she had ever known.

It made him wonder. Was she the one, who, under the oaks at the hitching rails, with two brief sentences had cut to the heart of an impending situation? “So I apprehend,” she had said. What had she apprehended? Had she used the phrase glibly, without meaning? Yet she it was who had thrilled and fluttered to him and with him when they had sung the “Gypsy Trail.” That he knew. But again, had he not seen her warm and glow to the playing of Donald Ware? But here Graham’s ego had its will of him, for he told himself that with Donald Ware it was different. And he smiled to himself and at himself at the thought.

“What amuses you?” Paula was asking.

“Heaven knows I am no architect. And I challenge you to house seven philosophers according to all the absurd stipulations laid down by Dick.”

Back in his tower room with his Andean books unopened before him, Graham gnawed his lip and meditated. The woman was no woman. She was the veriest child. Or—­and he hesitated at the thought—­was this naturalness that was overdone? Did she in truth apprehend? It must be. It had to be. She was of the world. She knew the world. She was very wise. No remembered look of her gray eyes but gave the impression of poise and power. That was it—­strength! He recalled her that first night when she had seemed at times to glint an impression of steel, of thin and jewel-like steel. In his fancy, at the time, he remembered likening her strength to ivory, to carven pearl shell, to sennit twisted of maidens’ hair.

And he knew, now, ever since the brief words at the hitching rails and the singing of the “Gypsy Trail,” that whenever their eyes looked into each other’s it was with a mutual knowledge of unsaid things.

In vain he turned the pages of the books for the information he sought. He tried to continue his chapter without the information, but no words flowed from his pen. A maddening restlessness was upon him. He seized a time table and pondered the departure of trains, changed his mind, switched the room telephone to the house barn, and asked to have Altadena saddled.

It was a perfect morning of California early summer. No breath of wind stirred over the drowsing fields, from which arose the calls of quail and the notes of meadowlarks. The air was heavy with lilac fragrance, and from the distance, as he rode between the lilac hedges, Graham heard the throaty nicker of Mountain Lad and the silvery answering whinney of the Fotherington Princess.