“It is quite certain that when Mrs. Barclay left the house at half-past seven she was on good terms with her husband. She was never, as I think I have said, ostentatiously affectionate, but she was heard by the coachman chatting with the Colonel in a friendly fashion. Now, it was equally certain that, immediately on her return, she had gone to the room in which she was least likely to see her husband, had flown to tea as an agitated woman will, and finally, on his coming in to her, had broken into violent recriminations. Therefore something had occurred between seven-thirty and nine o’clock which had completely altered her feelings towards him. But Miss Morrison had been with her during the whole of that hour and a half. It was absolutely certain, therefore, in spite of her denial, that she must know something of the matter.