It was the table, and the stool beside it, that drew my attention and brought a muffled exclamation from my lips. The thing had been thrust out of its usual place, pushed aside as if some frenzied shape had lunged against it. I could make out its former position by the marks on the dusty floor at my feet. Now it was nearer to the center of the room, and had been wrenched sidewise from its holdings. A shudder took hold of me as I looked at it. A living person, sitting on the stool before me, staring at the door, would have wrenched the table in just this manner in his frenzy to escape from the room! * * * * * The light of the match died, plunging me into a pit of gloom. I struck another and stepped closer to the table. And there, on the floor, I found two more things that brought fear to my soul. One of them was a heavy flash-lamp--a watchman's lamp--where it had evidently been dropped. Been dropped in flight! But what awful terror must have gripped the fellow to make him forsake his only means of escape through those black passages? And the second thing--a worn copy of a leather-bound book, flung open on the boards below the stool! The flash-lamp, thank God! had not been shattered. I switched it on, directing its white circle of light over the room. This time, in the vivid glare, the room became even more unreal. Black walls, clumsy, distorted shadows on the wall, thrown by those huge piles of wooden boxes. Shadows that were like crouching men, groping toward me. And beyond, where the single door opened into a passage of Stygian darkness, that yawning entrance was thrown into hideous detail. Had any upright figure been standing there, the light would have made an unholy phosphorescent specter out of it. I summoned enough courage to cross the room and pull the door shut. There was no way of locking it. Had I been able to fasten it, I should surely have done so; but the room was evidently an unused chamber, filled with empty refuse. This was the reason, probably, why the watchman had made use of it as a retreat during the intervals between his rounds. But I had no desire to ponder over the sordidness of my surroundings. I returned to my stool in silence, and stooping, picked up the fallen book from the floor. Carefully I placed the lamp on the table, where its light would shine on the open page. Then, turning the cover, I began to glance through the thing which the man before me had evidently been studying. And before I had read two lines, the explanation of the whole horrible thing struck me. I stared dumbly down at the little book and laughed. Laughed harshly, so that the sound of my mad cackle echoed in a thousand ghastly reverberations through the dead corridors of the building. * * * * *