"He took his degree at Cambridge, did he not?" "Yes--just ten years ago. We talked much of it during the happy fortnight we spent there. We visited all his old haunts. He was a Trinity man, and loved his college with an enthusiasm I have seen in few. I never saw anyone happier than he was during the last fortnight. His spirits were gay. He seemed scarcely to know fatigue. He was always hunting up old friends." "Were there many of the men of his time at Cambridge?" "No--that was the sad thing. He has been unfortunate with regard to his friends. He made many, for he was popular and had a sympathetic manner which attracted people, but some had gone abroad and several had died. There was a Mr. Leigh in particular. He had been much attached to him in the old days. But he only heard of his death when we went to Cambridge, for he had completely lost sight of him for a long time. This news saddened him for a little." "When did he hear of Leigh's death?" "The day before yesterday. The Dean of his college told him. He was visibly affected for the time, and talked of him to me all the evening. He told me several incidents with regard to a foreign tour they had taken together." "Indeed! And he seemed depressed while he spoke?" "Only just for a time." "When did your husband and Mr. Leigh go abroad?" Mrs. Mainwaring thought for a moment. "It was just after Edward had taken his degree," she said. "He mentioned that fact also when he talked over matters the evening before last." "From what part of England did Mr. Mainwaring and Mr. Leigh start on their foreign tour?" "I think it must have been from Dover. Yes, I remember now; Edward said that Mr. Leigh arranged to meet him at Dover. He failed to keep his first appointment, and Edward had to remain at Dover waiting for him for twenty-four hours." I thought over this piece of information for some time. The story was altogether puzzling; the queer thing about it being not so much the fact of Mainwaring's brain having gone wrong as the strange form his aberration seemed to have taken. It was too evidently the fact that he was either possessed by an active dislike to his wife, or had forgotten her existence. After some anxious thought I asked Mrs. Mainwaring one or two more questions. "Did you notice anything peculiar in your husband the last evening and night you spent together?"