The Andre Norton Megapack - 15 Classic Novels and Short Stories

suggestion.
    Underground? There had been those ways in that other city, a city which, though built on a much smaller scale, was not too different in general outline from this one. The idea was worth investigation.
    The doorway, which had afforded him a shelter from which to spy out the land, yielded to his push, and he went through three large rooms on the ground floor, paying no attention to the strange groups of furnishings, but seeking something else, which he had luck to find in the last room, a ramp leading down.
    It was in the underground that he made his first important find. They had seen ground vehicles in the city, a few still in operation, but Raf had gathered that the fuel and extra parts for the machines were now so scarce that they were only used in emergencies. Here, however, was a means of transportation quite different, a tunnel through which ran a ribbon of belt, wide enough to accommodate three or four passengers at once. It did not move, but when Raf dared to step out upon its surface, it swung under his weight. Since it ran in the general direction of the Center he decided to use it. It trembled under his tread, but he found that he could run along it making no sound.
    The tunnel was not in darkness, for square plates set in the roof gave a diffused violet light. However, not too far ahead, the light was brighter, and it came from one side, not the roof. Another station on this abandoned way? The pilot approached it with caution. If his bump of direction was not altogether off, this must be either below the Center or very close to it.
    The second station proved to be a junction where more than one of the elastic paths met. Though he crouched to listen for a long moment before venturing out into that open space, he could hear or see nothing which suggested that the aliens ever came down now to these levels.
    They had provided an upward ramp, and Raf climbed it, only to meet his first defeat at its top. For here was no opening to admit him to the ground floor of what he hoped was the Center. Baffled by the smooth surface over which he vainly ran his hands seeking for some clue to the door, he decided that the aliens had, for some purpose of their own, walled off the lower regions. Discouraged, he returned to the junction level. But he was not content to surrender his plans so easily. Slowly he made a circuit of the platform, examining the walls and celling. He found an air shaft, a wide opening striking up into the heart of the building above.
    It was covered with a grille and it was above his reach but . . .
    Raf measured distances and planned his effort. The mouth of a junction tunnel ran less than two feet away from that grille. The opening was outlined with a ledge, which made a complete arch from the floor. He stopped and triggered the gravity plates in his space boots. Made to give freedom of action when the ship was in free fall, they might just provide a weak suction here. And they did! He was able to climb that arch and, standing on it, work loose the grille which had been fashioned to open. Now . . .
    The pilot flashed his hand torch up into that dark well. He had been right—and lucky! There were holds at regular intervals, something must have been serviced by workmen in here. This was going to be easy. His fingers found the first hold, and he wormed his way into the shaft.
    It was not a difficult climb, for there were niches along the way where the alien mechanics who had once made repairs had either rested or done some of their work. And there were also grilles on each level which gave him at least a partial view of what lay beyond.
    His guess was right; he recognized the main hall of the Center as he climbed past the grid there, heading up toward those levels where he was sure the leaders of the aliens had their private quarters. Twice he paused to look in upon conferences of the gaudily wrapped and painted civilians, but, since he could not understand what they were saying, it was a waste of time to linger.
    He was some eight floors up when chance, luck, or that mysterious something which had brought him into this venture, led him to the right place at the right time. There was one of those niches, and he had just settled into it, peering out through the grid, when he saw the door at the opposite end of the room open and in marched a party of warriors with a prisoner in their midst.
    Raf’s eyes went wide. It was the captive he sought; he had no doubt of that. But