middle-aged man, whose hair was tinged with grey, and whose round, rosy face made him appear the picture of good health, joined us a moment later. In a low, mysterious tone he explained to my friend the circumstance of Short having admitted possession of the knife hanging in the hall. In it Ambler Jevons at once scented a clue. "I never liked that fellow!" he exclaimed, turning to me. "My impression has always been that he was a sneak, and told old Courtenay everything that went on, either in drawing-room or kitchen." Thorpe, continuing, explained how the back door had been found unfastened, and how Short had admitted unfastening it in order to go forth to seek the assassin. "A ridiculous story--utterly absurd!" declared Jevons. "A man doesn't rush out to shed blood for blood like that!" "Of course not," agreed the detective. "To my mind appearances are entirely against this fellow. Yet, we have one fact to bear in mind, namely, that being sent to town twice he was afforded every opportunity for escape." "He was artful," I remarked. "He knew that his safest plan was to remain and face it. If, as seems very probable, the crime was planned, it was certainly carried out at a most propitious moment." "It certainly was," observed my friend, carefully scrutinising the knife, which Thorpe had brought to him. "This," he said, "must be examined microscopically. You can do that, Boyd. It will be easy to see if there are any traces of blood upon it. To all appearances it has been recently cleaned and oiled." "Short admits cleaning it, but he says he did so three days ago," I exclaimed. He gave vent to another low grunt, from which I knew that the explanation was unsatisfactory, and replaced the knife in its faded velvet sheath. Save for the man upon whom suspicion had thus fallen, the servants had all gone to the house where their mistress was lodged, after being cautioned by the police to say nothing of the matter, and to keep their mouths closed to all the reporters who would no doubt very soon be swarming into the district eager for every scrap of information. Their evidence would be required at the inquest, and the police forbade them, until then, to make any comment, or to give any explanation of the mysterious affair. The tongues of domestics wag quickly and wildly in such cases, and have many times been the means of defeating