They were in a hall where bold bands of color interwove in patterns impossible for Terran eyes to study. Raf lowered his gaze hurriedly to the gray floor under his boots. He had discovered earlier that to try to trace any thread of that wild splashing did weird things to his eyesight and awakened inside him a sick panic. His space boots, with the metal, magnetic plates set in the soles, clicked loudly on the pavement where his companion's bare feet made no whisper of sound.

The hall gave upon a ramp leading down, and Raf recognized this. His confidence arose. They were on their way out of the building. Here the murals were missing so that he could look about him for reference points.

He was sure that the banquet hall was some ten stories above street level. But they did not go down ten ramps now. At the foot of the third the officer turned abruptly to the left, beckoning Raf along. When the Terran remained stubbornly where he was, pointing in the direction which, to him, meant return to the flitter, the other made gestures describing an aircraft in flight. His own probably.

Raf sighed. He could see no way out unless he cut and ran. And long before he reached the street from this warren they could pick him up. Also, in spite of all the precautions he had taken to memorize their way here, he was not sure he could find his path back to the flyer, even if he were free to go. Giving in, he went after the officer.

Their way led out on one of the spider-web bridges which tied building and tower into the complicated web which was the city. Raf, as a pilot of flitter, had always believed that he had no fear of heights. But he discovered that to coast above the ground in a flyer was far different than to hurry at the pace his companion now set across one of these narrow bridges suspended high above the street. And he was sure that the surface under them vibrated as if the slightest extra poundage would separate it from its supports and send it, and them, crashing down.

Luckily the distance they had to cover was relatively short, but Raf swallowed a sigh of relief as they reached the door at the other end. They were now in a tower which, unluckily, proved to be only a way station before another swing out over empty space on a span which sloped down! Raf clutched at the guide rail, the presence of which suggested that not all the users of this road were as nonchalant as the officer who tripped lightly ahead. This must explain the other's bare feet—on such paths they were infinitely safer than his own boots.

The downward sloping bridge brought them to a square building which somehow had an inhabited look which those crowding around it lacked. Raf gained its door to become aware of a hum, a vibration in the wall he touched to steady himself, hinting at the drive of motors, the throb of machinery inside the structure. But within, the officer passed along a corridor to a ramp which brought them out, after what was for Raf a steep climb, upon the roof. Here was not one of the tongue-shaped craft such as had first met them in the city, but a gleaming globe. The officer stopped, his eyes moving from the Terran to the machine, as if inviting Raf to share in his own pride. To the pilot's mind it bore little resemblance to any form of aircraft past or present with which he had had experience in his own world. But he did not doubt that it was the present acme of alien construction, and he was eager to see it perform.

He followed the officer through a hatch at the bottom of the globe, only to be confronted by a ladder he thought at first he could not climb, for the steps were merely toe holds made to accommodate the long, bare feet of the crew. By snapping on the magnetic power of his space boots, Raf was able to get up, although at a far slower speed than his guide. They passed several levels of cabins before coming out in what was clearly the control cabin of the craft.

To Raf the bank of unfamiliar levers and buttons had no meaning, but he paid strict attention to the gestures of his companion. This was not a space ship he gathered. And he doubted whether the aliens had ever lifted from their own planet to their neighbors in this solar system. But it was a long-range ship with greater cruising power than the other flyer he had seen. And it was being readied now for a voyage of some length.

The Terran pilot squatted down on the small stool before the controls. Before him a visa plate provided a clear view of the sky without and the gathering clouds of evening. Raf shifted uncomfortably. That signal of the passing of time triggered his impatience to be away—back to the RS 10. He did not want to spend the night in this city. Somehow he must get the officer to take him back to the flitter—to be there would be better than shut up in one of the alien dwellings.