It replied, “The 92nd on the 14th row, in the Hall of Dead Books, contains a plan of the Level of the Inquirers, which includes the Bureau of Prehistoric Zoology, and the Places of Vivisection. The plan is that of the 28th of the Lower Levels, below the Division. The 73rd book on the 2nd tier on the left-hand side of the 83rd corridor, contains an account of all vivisections during the last five moons.” We went at once to the latter book, as it was the nearer, and it was here that we gained the first sight,--at least in picture,--of one of those whose absence had brought me on this strange adventure. After we had inquired through much detail, sometimes fascinating in its enigmatic suggestions, sometimes repellent in its exhibitions of what appeared to me to be a very callous brutality, we were shown a table, by the side of which, as I thought at the first glance, a naked man stood with a pair of pincers in his right hand, in which something of the size of a large rat was squirming. There was a row of five large jars upon the table before him, into the first of which he plunged the object of his attention, holding it immersed for about half-a-minute, and withdrawing it in a half-drowned condition. I saw it clearly as it came out, and recognised the red hair of Templeton with a shock of horror. Instantly, the proportions of the room were changed by my knowledge of the identity of the victim. I recognised in the naked man the giant form of a Dweller, and became aware of the huge size of the row of jars before him. I watched Templeton, now hanging limply in the pincers, plunged into a second, third, and fourth of these jars, being raised to the level of the operator’s eyes, and inspected carefully after each immersion. But the fourth inspection was more prolonged than the others, and after making it the Dweller turned to another table, and laid his victim, still in the grip of the pincers, upon a yellow disc that was let into its surface. As the limp body touched the metal it was galvanised into an activity that kicked and writhed with a furious impotence. Lifted again, it was plunged into a globe of light of a white intensity, against which its body showed transparent, every organ, every internal movement in lung, and artery, and intestine, being clearly indicated. It appeared that this test had confirmed the unfavourable indications of the fourth immersion, for the body was now withdrawn from the light, and thrown carelessly into a mesh-sided tray upon the floor, in which a number of non-human creatures of unfamiliar kinds were already heaped and squirming. The Dweller pressed a stud with his foot, and the tray slid from the room. I did not follow it further. I felt almost physically sick with repulsion from the brutality which I had witnessed, as I waited while my companion’s mind continued to receive the picture. After a short time, she broke connection also and addressed herself to me.