“I know. I have not yet touched on fact. But facts are coming, Inspector.” He stared. Evidently he was not accustomed to hear the law laid down in this fashion by a midget of my proportions. “Go on,” said he; “happily, I have no clerk here to listen.” “I would not speak if you had. These are words for but one ear as yet. Not even my uncle suspects the direction of my thoughts.” “Proceed,” he again enjoined. Upon which I plunged into my subject. “Mrs. Fairbrother wore the real diamond, and no imitation, to the ball. Of this I feel sure. The bit of glass or paste displayed to the coroner’s jury was bright enough, but it was not the star of light I saw burning on her breast as she passed me on her way to the alcove.” “Miss Van Arsdale!” “The interest which Mr. Durand displayed in it, the marked excitement into which he was thrown by his first view of its size and splendor, confirm in my mind the evidence which he gave on oath (and he is a well-known diamond expert, you know, and must have been very well aware that he would injure rather than help his cause by this admission) that at that time he believed the stone to be real and of immense value. Wearing such a gem, then, she entered the fatal alcove, and, with a smile on her face, prepared to employ her fascinations on whoever chanced to come within their reach. But now something happened. Please let me tell it my own way. A shout from the driveway, or a bit of snow thrown against the window, drew her attention to a man standing below, holding up a note fastened to the end of a whip-handle. I do not know whether or not you have found that man. If you have—” The inspector made no sign. “I judge that you have not, so I may go on with my suppositions. Mrs. Fairbrother took in this note. She may have expected it and for this reason chose the alcove to sit in, or it may have been a surprise to her. Probably we shall never know the whole truth about it; but what we can know and do, if you are still holding to our compact and viewing this crime in the light of Mr. Durand’s explanations, is that it made a change in her and made her anxious to rid herself of the diamond. It has been decided that the hurried scrawl should read, ‘Take warning. He means to be at the ball. Expect trouble if you do not give him the diamond,’ or something to that effect. But why was it passed up to her unfinished? Was the haste too great? I hardly think so. I believe in another explanation, which points with startling directness to the possibility that the person referred to in this broken communication was not Mr. Durand, but one whom I need not name; and that the reason you have failed to find the messenger, of whose appearance you have received definite information, is that you have not looked among the servants of a certain distinguished visitor in town. Oh,” I burst forth with feverish volubility, as I saw the inspector’s lips open in what could not fail to be a sarcastic utterance, “I know what you