“Don’t stop,” she whispered. “What are you making?” asked Joan.!

The girl rose. “I must be getting back,” she said. “Dad will be wondering where I’ve got to.” “He must be somewhere,” she said: “the living God of love and hope: the God that Christ believed in.”

He was explaining to her things about the air service. It seemed he had had experience in flying—some relation of his with whom he had spent a holiday last summer. The old lady had tired herself. Joan undertook the mission. She thought she would rather enjoy it, and Mrs. Denton promised to let her have full instructions. She would write to her friends in Paris and prepare them for Joan’s coming. The medical staff consisted of a Dr. Poujoulet and two assistants. The authorities were always promising to send him more help, but it never arrived. One of the assistants, a Monsieur Dubos, a little man with a remarkably big beard, was a chemist, who, at the outbreak of the war, had been on the verge, as he made sure, of an important discovery in connection with colour photography. Almost the first question he asked Joan was could she speak German. Finding that she could, he had hurried her across the yard into a small hut where patients who had borne their operation successfully awaited their turn to be moved down to one of the convalescent hospitals at the base. Among them was a German prisoner, an elderly man, belonging to the Landwehr; in private life a photographer. He also had been making experiments in the direction of colour photography. Chance had revealed to the two men their common interest, and they had been exchanging notes. The German talked a little French, but not sufficient; and on the day of Joan’s arrival they had reached an impasse that was maddening to both of them. Joan found herself up against technical terms that rendered her task difficult, but fortunately had brought a dictionary with her, and was able to make them understand one another. But she had to be firm with both of them, allowing them only ten minutes together at a time. The little Frenchman would kneel by the bedside, holding the German at an angle where he could talk with least danger to his wound. It seemed that each was the very man the other had been waiting all his life to meet. They shed tears on one another’s neck when they parted, making all arrangements to write to one another.