"Yes, monsieur," said Durette. "At the shop of M. Corval, in the Rue du Casino, a young lady in a dark-grey frock and hat bought some cord of this kind a few minutes after nine last night. It was just as the shop was being closed. I showed Corval the photograph of Celie Harland, which M. le Commissaire gave me out of Mme. Dauvray's room, and he identified it as the portrait of the girl who had bought the cord." Complete silence followed Durette's words. The whole party stood like men stupefied. No one looked towards Wethermill; even Hanaud averted his eyes."Yes, that is very important," he said awkwardly. He turned away and, followed by the others, went up the stairs to the bedroom of Helene Vauquier. CHAPTER VI HELENE VAUQUIER'S EVIDENCE A nurse opened the door. Within the room Helene Vauquier was leaning back in a chair. She looked ill, and her face was very white. On the appearance of Hanaud, the Commissaire, and the others, however, she rose to her feet. Ricardo recognised the justice of Hanaud's description. She stood before them a hard-featured, tall woman of thirty-five or forty, in a neat black stuff dress, strong with the strength of a peasant, respectable, reliable. She looked what she had been, the confidential maid of an elderly woman. On her face there was now an aspect of eager appeal. "Oh, monsieur!" she began, "let me go from here--anywhere--into prison if you like. But to stay here--where in years past we were so happy--and with madame lying in the room below. No, it is insupportable." She sank into her chair, and Hanaud came over to her side. "Yes, yes," he said, in a soothing voice. "I can understand your feelings, my poor woman. We will not keep you here. You have, perhaps, friends in Aix with whom you could stay?" "Oh yes, monsieur!" Helene cried gratefully. "Oh, but I thank you! That I should have to sleep here to-night! Oh, how the fear of that has frightened me!" "You need have had no such fear. After all, we are not the visitors of last night," said Hanaud, drawing a chair close to her and patting her hand sympathetically. "Now, I want you to tell these gentlemen and myself all that you know of this dreadful business. Take your time, mademoiselle! We are human." "But, monsieur, I know nothing," she cried. "I was told that I might go to bed as soon as I had dressed Mlle. Celie for the seance."