And he did not. Independently of the attraction of the case itself (and Dr. Hudson loved his profession, and pursued it with an ever-increasing fondness for its study), he found himself very much interested in the beauty of his patient, and profoundly touched by the adoration of her so quietly, so unceasingly shown by her husband. It was a little new to him this worship of a woman by the man who was legally bound to her; for Dr. Hudson lived habitually in Paris, and had a high repute amongst the French aristocracy, amongst whom there was indeed a great deal of the tender passion, though it generally flowed in the wrong channels. He was pleased too with Streightley's sound sense and straightforward honesty; and after the crisis had passed, and Katharine was in the earliest stage of convalescence, she would hear the doctor and her husband discussing politics, and commerce, statistics, and science, far into the night. The doctor was a widower, had no domestic ties, all his patients were away from Paris; and he was so pleased with his new friends that he extended the period of his holiday, and remained with them as their guest. So a fortnight passed, at the end of which Katharine was pronounced in a fit state to journey homeward; and they started, travelling by easy stages to Paris, where they remained three days. At the "Nord" railway-station, just before their train left for Paris, Dr. Hudson bade them farewell. "Remember!" said he, holding Katharine's hand, "I've seen you in an important crisis of your life, and I want to be associated with it! I'm an odd old fellow, with no one to care for or to be cared for by, and I've taken a fancy to you and your husband. If ever you're very ill, or in any state in which you think I can be of service to you, you'll promise to let me know?" Robert was settling the wraps in the carriage; but Katharine pressed the doctor's hand, and said, "I promise you." The next moment the whistle sounded, and the train moved on. When and where was that promise kept? CHAPTER II. AT MIDDLEMEADS.