"The London evening papers got hold of the story for their noonday edition," the Old Man in the Corner went on, after a slight pause, "and I with my passion for the enigmatical and the perplexing, made up my mind then and there to probe the mystery on my own account, because I knew well enough that this was just the sort of case which would send the county police blundering all over the wrong track. "I arrived at Barchester on the Tuesday, in time for the inquest, but nothing of much importance transpired that day. Medical evidence went to prove that the deceased had first been struck on the back of the head by some heavy instrument, a weighted stick or something of the sort, which had no doubt stunned her, but she actually died of gas poisoning, which she inhaled in large quantities while she was half-conscious. The medical officer went on to say that Miss Clarke must have been dead twelve hours or more when he was called in by the police at about eight o'clock in the morning. "After this, a couple of neighbours testified to having seen Miss Clarke at her front door at about half-past five the previous evening. It was a very dark night, if you remember, and a thick Scotch mist was falling. When the neighbours went by, Miss Clarke had apparently just introduced a visitor into her house, the gas was alight in the small hall, and they had vaguely perceived the outline of a man or woman, they could not swear which, in a huge coat, standing for a moment immediately behind Miss Clarke; the neighbours also heard Miss Clarke's voice speaking to her visitor, but what she said they could not distinguish. The weather was so atrocious that every one who was abroad that night hurried along without taking much notice of what went on around. "Evidence of a more or less formal character followed, and the inquest was then adjourned until the Friday, every one going away with the feeling that sensational developments were already in the air. "And the developments came tumbling in thick and fast. To begin with, it appears that Arthur Clarke, when first questioned by the police, had made a somewhat lame statement. "'I was asked,' he said, 'to help with the servants' Christmas party at Meere Court. I walked over to Barchester at about three o'clock in the afternoon, with my suit-case, as I was going to spend the night at the Deanery Hotel. I went on to Meere Court soon after half-past three, and stayed until past seven; after which I walked back to the Deanery, had some dinner, and went early to bed. I never knew that anything had happened to my sister until the police telephoned to me soon after eight o'clock the next morning. And,' he added, 'that's all about it!'