There were also Robots here of many different types. Some of them were eight or ten feet in stature, in the fashion of a man: Migul was of this design. Others were small, with bulging foreheads and bulging chest plates: Larry saw this type as domestics in the palace. Still others were little pot-bellied things with bent legs and long thin arms set crescent-shape. I saw one of these peer into a huge chassis of a machine, and reach in with his curved arm to make an interior adjustment.... Migul had brought Mary Atwood and me in the larger cage, from that burned forest of the year 762, where with the disintegrating ray-gun Tugh had killed Harl. The body of Harl in a moment had melted into putrescence, and dried, leaving only the skeleton within the clothes. The white-ray, Tugh had called his weapon. We were destined very shortly to have many dealings with it. Tugh had given Migul its orders. Then Tugh took Harl's smaller cage and flashed away to meet Tina and Larry in 1777, as I have already described. And Migul brought us here to 2930. As we descended the spiral staircase and came into the cavern, it stood with us for a moment. "That's wonderful," the Robot said proudly. "I am part of it. We are machinery almost human." * * * * * Then it led us down a side aisle of the cavern and into a dim recess. A great transparent tube bubbling with a violet fluorescence stood in the alcove space. Behind it in the wall Migul slid a door, and we passed through, into a small metal room. It was bare, save for two couch-seats. With the door closed upon us, we waited through an interval. How long it was, I do not know; several hours, possibly. Migul told us that Tugh would come. The giant mechanism stood in the corner, and its red-lit eyes watched us alertly. It stood motionless, inert, tireless--so superior to a human in this job, for it could stand there indefinitely. We found food and drink here. We talked a little; whispered; and I hoped Migul, who was ten feet away, could not hear us. But there was nothing we could say or plan. Mary slept a little. I had not thought that I could sleep, but I did too; and was awakened by Tugh's entrance. I was lying on the couch; Mary had left hers and was sitting now beside me. Tugh slid the door closed after him and came toward us, and I sat up beside Mary. Migul was standing motionless in the corner, exactly where he had been hours before. "Well enough, Migul," Tugh greeted the Robot. "You obey well." "Master, yes. Always I obey you; no one else." I saw Tugh glance at the mechanism keenly. "Stand aside, Migul. Or no, I think you had better leave us. Just for a moment, wait outside." "Yes, Master." It left, and Tugh confronted us. "Sit where you are," he said. "I assume you are not injured. You have been fed? And slept, perhaps! I wish to treat you kindly." "Thanks," I said. "Will you not tell us what you are going to do with us?" * * * * *