left its telltale marks behind. Sergeant McQuade looked down, then up, grunted to himself and passed on. There was nothing of interest here. At the end of the pathway we came to the termination of the wing and I saw the detective look about keenly. Here certainly the condi[59]tions were more favorable. A covered porch encircled the end of the building and extended along its front. There were three windows in the west face of the wing, one in the room which I had occupied, one in the end of the hallway and one in Mr. Ashton's room. The roof of the porch was directly beneath them. How easy, I thought at once, for anyone inside the house to have reached the porch roof from the window at the end of the hall, and to have gained, in half a dozen steps, the window of Mr. Ashton's room. I thought of the handkerchief, of the footsteps I fancied I had heard during the night, and shuddered. Here again the Sergeant first examined the graveled walk with elaborate care, but, as before, with no immediate results. Presently, however, he stepped toward the front of the house. There, in the soft gravel, were the prints of a woman's feet, leading from the corner of the path to the front entrance. I bent down and examined them with curious eyes, then[60] recoiled with a cry of dismay. The footprints led in one direction only, and that was toward the front door. In a flash I realized what theory McQuade would at once construct in his mind. The murderer, reaching the porch roof from the hallway, and obtaining access to the murdered man's room through the window, upon escaping from the room to the roof, would be unable to again enter the house from the roof because of my presence in the hall. What more natural than to descend from the porch to the ground by means of the heavy vines growing about the stone pillar supporting the porch roof at the corner, and, after walking quickly along the path a few steps, reach and re-enter the house through the front door, and appear almost at once among the others who had gathered in the upper hall as soon as the tragedy was known? I remembered at once that Miss Temple had appeared in a loose dressing gown. Would she, then, have had time to throw off her[61] dress so quickly, wet and muddy as it must have been, and to change her shoes for slippers? Where were these shoes, I wondered, if this train of reasoning was correct, and would their condition prove that she had been out of the house during the night? As these thoughts crowded tumultuously through my brain, I saw McQuade examining the heavy mass of ivy which grew at the corner of the porch with a puzzled expression. Following his glance, I realized that the theory had at least a temporary setback. The vine was not broken or torn in any way as would inevitably have been the case 

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