The Doctor drew back, deeply shocked. Her words, the deep earnestness of her voice, and the hard, selfish look in her eyes, surprised and hurt him. He was a sentimentalist and to him a woman's whole existence should be in her love, and in the home her lover could provide for her. Modern as he was in his practice of medicine, advanced as he was in his psychological studies, at heart he was an old-fashioned man, with all of the old-fashioned man's ideas of love and marriage. For a moment he felt a feeling of repulsion, almost of horror, and he looked coldly at this young girl, who seemed to be so greatly changed by a few short weeks of luxury, but as he looked he thought of the day, only so lately passed, when she had been brought to them, white and lifeless, and as he saw her now, defiant, rebellious, in all the vigor of her splendid health, he smiled at her tenderly. He knew, as few men know, the changes that some great nervous shock so often makes in a person's character, and he resolved to devote himself to this girl until her nervous system fully recovered, to help her with gentle kindness until her old tranquil serenity was fully restored. It came into his mind that of all the many cases of hysteria which he had successfully treated here was one that would challenge his greatest skill, and he was glad of the fortune that had sent him to her, for his experienced eyes saw that she was to need his help, and in the confidence of a man to whom failure seldom came he felt secure in his ability to restore her to her old gentle self. He sat down beside her and talked quietly of her father and of the fame and fortune that was so sure to be his, and as he talked he watched her and saw just a young, happy, innocent girl, serene now, perfectly gentle, perfectly calm, and they laughed and talked merrily together until her father entered the room. CHAPTER V A LOVER'S QUARREL Dr. Crossett looked at his friend anxiously and found, as he was prepared to find, that the Doctor seemed nervous and depressed, but when, after a few moments, Lola left them together, he was hardly prepared for the look of shame and humiliation he saw on his face. "You sent for me, Martin," he said, trying to show in his voice the deep sympathy and friendship that he really felt. "Paul," the Doctor answered, after a moment's hesitation, "the money I borrowed from you is gone! Gone! and not for the purpose for which you loaned it." "I made no condition, Martin. The loan was my own suggestion. I am not a poor man, and all that I have is at your service. It is not worth the tragedy in your face. With the fame that your discovery will bring to you, you can easily repay me. Come!" He put his arm affectionately over Dr. Barnhelm's shoulder. "Let's say no more about it. Just tell me of your work. It must be only a few days now before you demonstrate before the Medical Society."