I came very near asking him what, but feared to seem too familiar, in case he was the cold but upright man he would fain appear, and too interested and inquiring if he were the whited sepulcher I secretly considered him. So with a nod a trifle more pronounced than if I had been unaffected by either hypothesis, I remounted the steps, carelessly remarking: “I’ll see you again after taking a turn through the house. If I discover anything—ghost marks or human marks which might be of interest to you—I’ll let you know.” Something like a growl answered me. But whether it came from master or dog, I did not stop to inquire. I had serious work before me; very serious, considering that it was to be done on my own responsibility and without the knowledge of my superiors. But I was sustained by the thought that no whisper of murder had as yet been heard abroad or at headquarters, and that consequently I was interfering in no great case; merely trying to formulate one. It was necessary, for the success of my plan, that some time should elapse before I reapproached Mr. Moore. I therefore kept my word to him and satisfied my own curiosity by taking a fresh tour through the house. Naturally, in doing this, I visited the library. Here all was dark. The faint twilight still illuminating the streets failed to penetrate here. I was obliged to light my lantern. My first glance was toward the fireplace. Venturesome hands had been there. Not only had the fender been drawn out and the grate set aside, but the huge settle had been wrenched free from the mantel and dragged into the center of the room. Rather pleased at this change, for with all my apparent bravado I did not enjoy too close a proximity to the cruel hearthstone, I stopped to give this settle a thorough investigation. The result was disappointing. To all appearance—and I did not spare it the experiment of many a thump and knock—it was a perfectly innocuous piece of furniture, clumsy of build, but solid and absolutely devoid of anything that could explain the tragedies which had occurred so near it. I even sat down on its musty old cushion and shut my eyes, but was unrewarded by alarming visions, or disturbance of any sort. Nor did the floor where it had stood yield any better results to the inquiring eye. Nothing was to be seen there but the marks left by the removal of its base from the blackened boards.