If Marc had not been convinced already of Simon's innocence his last doubts would have fled amid the emotion of that scene. Yielding to an impulse of his heart he embraced both husband and wife, as if giving himself to them entirely, in order to help them in the grave crisis which he foresaw. Desirous as he was of taking immediate action, he again spoke of the copy-slip, for he felt that it was the one important piece of evidence on which the elucidation of the whole affair must be reared. But how puzzling was that crumpled, bitten slip of paper, soiled by saliva, with its initialling or its blot half effaced, and with one of its corners carried away, no doubt, by the victim's teeth! The very words 'Love one another,' lithographed in a fine English round-hand, seemed fraught with a terrible irony. Whence had that slip come? Who had brought it to that room--the boy or his murderer? And how could one ascertain the truth when the Mesdames Milhomme, the neighbouring stationers, sold such slips almost daily? Simon, for his part, could only repeat that he had never had that particular one in his school. 'All my boys would say so. That copy never entered the school, never passed under their eyes.' Marc regarded this as valuable information. 'Then they could testify to that effect!' he exclaimed. 'As it is being falsely rumoured that the police found similar copies in your rooms, one must re-establish the truth immediately,--call on your pupils at their homes, and demand their evidence before anybody tries to tamper with their memory. Give me the names of a few of them; I will take the matter in hand, and carry it through this afternoon.' Simon, strong in the consciousness of his innocence, at first refused to do so. But eventually, among his pupils' parents, he named Bongard, a farmer on the road to La Désirade, Masson Doloir, a workman living in the Rue Plaisir, and Savin, a clerk in the Rue Fauche. Those three would suffice unless Marc should also like to call on the Mesdames Milhomme. Thus everything was settled, and Marc went off to lunch, promising that he would return in the evening to acquaint Simon with the result of his inquiries. Once outside on the square, however, he again caught sight of handsome Mauraisin. This time the Elementary Inspector was deep in conference with Mademoiselle Rouzaire. He was usually most punctilious and prudent with the schoolmistresses, in consequence of his narrow escape from trouble, a few years previously, in connection with a young assistant-teacher who had shrieked like a little booby when he had simply wished to kiss her. Malicious people said that Mademoiselle Rouzaire did not shriek, although she was so ugly, and that this explained both the favourable reports she secured and her prospects of rapid advancement.