He extended to Bentley what seemed to be a pair of binoculars, but with the ear-hooks common to ordinary spectacles. He set them over Bentley's eyes and set them in place. "Now you can survey New York as you wish." - - - Bentley looked for a moment or two. Sixth Avenue was a deserted highway, on which red and green lights blinked off and on in the usual routine, signaling to drivers who were non-existent. There were vistas of deserted streets and avenues. There were some few living things--policemen in uniform, standing in pairs and larger groups, all concentrated in an area covering no more than twenty acres, which twenty acres included the hideout of Caleb Barter. Bentley knew that the hideout was under Millegan Place. He had recognized it coming in. A secret panel in a brick wall had opened to show a door where none was apparent. Then a circular stairway leading down into darkness to the room which Barter had gouged out of the earth and turned into a laboratory of hell. "See the police?" asked Barter. "They know now where I am, but they are helpless because of my hostages. I shall now begin the operations I believe to be necessary. Then I shall issue another manifesto, telling the public that I am safeguarded by great apes whose ability will prove the correctness of my theory about the possibility of creating a race of supermen. My manifesto shall say that my apes must not be slain. It shall say that for every ape slain by the police one of my eighteen hostages will die." Bentley would have gasped with horror, but he could not. Now he saw Thomas Tyler, his face a white mask of despair, in the midst of his helpless men. "I'll give you a hand, somehow, Tommy," Bentley whispered deep down inside him. "Now you shall see what I do, Lee," said Caleb Barter. "Naka Machi, bring the ape skin you took from my friend. Bentley, you will follow us." - - - Barter removed the strange glasses from Bentley's eyes, blotting out the deserted streets and avenues of Manhattan. Naka Machi followed behind Bentley, carrying the ape skin in which Bentley had penetrated the stronghold of Caleb Barter. The chrome-steel door swung silently back and the three entered another room filled with blaring light. Without being able to look back Bentley knew that Ellen, white of face and staring, followed at their heels. There was a long white operating table in this room, and a smaller chrome-steel door set some four feet above the floor in one wall. "Naka Machi, the incineration tube," said Barter brusquely. Naka Machi stepped to the operating table and dug into one of the drawers. He brought out a white tube, closed at one end, about an inch in diameter, eight inches in length, and snowy white. "Concentrated fire, Bentley," said Barter. "Watch!"