"Lucky Christophe!" Olivier would sigh. "I wish you could hand a little of your appetite over to us."

Health, like sickness, is contagious. The first to feel the benefit of Christophe's vitality was naturally Olivier. Vitality was what he most lacked. He retired from the world because its vulgarity revolted him. Brilliantly clever though he was, and in spite of his exceptional artistic gifts, he was too delicate to be a great artist. Great artists do not feel disgust: the first law for every healthy being is to live: and that law is even more imperative for a man of genius: for such a man lives more. Olivier fled from life: he drifted along in a world of poetic fictions that had no body, no flesh and blood, no relation to reality. He was one of those literary men who, in quest of beauty, have to go outside time, into the days that are no more, or the days that have never been. As though the wine of life were not as intoxicating, and its vintages as rich nowadays as ever they were! But men who are weary in soul recoil from direct contact with life: they can only bear to see it through the veil of visions spun by the backward movement of time, and hear it in the echo which sends back and distorts the dead words of those who were once alive.—Christophe's friendship gradually dragged Olivier out of this Limbo of art. The sun's rays pierced through to the innermost recesses of his soul in which he was languishing.

* * * * *

Elsberger, the engineer, also succumbed to Christophe's contagious optimism. It was not shown in any change in his habits: they were too inveterate: and it was too much to expect him to become enterprising enough to leave France and go and seek his fortune elsewhere. But he was shaken out of his apathy: he recovered his taste for research, and reading, and the scientific work which he had long neglected. He would have been much astonished had he been told that Christophe had something to do with his new interest in his work: and certainly no one would have been more surprised than Christophe.

* * * * *

But of all the inhabitants of the house, Christophe was the soonest intimate with the little couple on the second floor. More than once as he passed their door he had stopped to listen to the sound of the piano which Madame Arnaud used to play quite well when she was alone. Then he gave them tickets for his concert, for which they thanked him effusively. And after that he used to go and sit with them occasionally in the evening. He had never heard Madame Arnaud playing again: she was too shy to play in company: and even when she was alone, now that she knew she could be heard on the stairs, she kept the soft pedal down. But Christophe used to play to them, and they would talk about it for hours together. The Arnauds used to speak of music with such eagerness and freshness of feeling that he was enchanted with them. He had not thought it possible for French people to care so much for music.

"That," Olivier would say, "is because you have only come across musicians."

"I'm perfectly aware," Christophe would reply, "that professed musicians are the very people who care least for music: but you can't make me believe that there are many people like you in France."

"A few thousands at any rate."

"I suppose it's an epidemic, the latest fashion."