Captain Belval searched the man's pockets. They contained no papers. "Very well," he said, rising to his feet, "we will wait till he wakes up and question him then. Ya-Bon, tie up his arms and legs and stay here, in the hall. The rest of you fellows, go back to the home: it's time you were indoors. I have my key. Say good-by to Little Mother Coralie and trot off." And, when good-by had been said, he pushed them outside, came back to the nurse, led her into the drawing-room and said: "Now let's talk, Little Mother Coralie. First of all, before we try to explain things, listen to me. It won't take long." They were sitting before the merrily blazing fire. Patrice Belval slipped a hassock under Little Mother Coralie's feet, put out a light that seemed to worry her and, when he felt certain that she was comfortable, began: "As you know, Little Mother Coralie, I left the hospital a week ago and am staying on the Boulevard Maillot, at Neuilly, in the home reserved for the convalescent patients of the hospital. I sleep there at night and have my wounds dressed in the morning. The rest of the time I spend in loafing: I stroll about, lunch and dine where the mood takes me and go and call on my friends. Well, this morning I was waiting for one of them in a big café-restaurant on the boulevard, when I overheard the end of a conversation. . . . But I must tell you that the place is divided into two by a partition standing about six feet high, with the customers of the café on one side and those of the restaurant on the other. I was all by myself in the restaurant; and the two men, who had their backs turned to me and who in any case were out of sight, probably thought that there was no one there at all, for they were speaking rather louder than they need have done, considering the sentences which I overheard . . . and which I afterwards wrote down in my little note-book." He took the note-book from his pocket and went on: "These sentences, which caught my attention for reasons which you will understand presently, were preceded by some others in which there was a reference to sparks, to a shower of sparks that had already occurred twice before the war, a sort of night signal for the possible repetition of which they proposed to watch, so that they might act quickly as soon as it appeared. Does none of this tell you anything?" "No. Why?"