At this point Underhill was a kind of museum, kept in the state it had been in in 2138, the last year it had been a functioning piste stop. This meant that it did not look exactly as it had in the years of their occupancy, but the older parts were all still there, so the changes since wouldn’t affect their project much, Sax judged. After his arrival with several others he took a walk around to see, and there the old buildings all were: the original four habitats, dropped whole from space; their junk heaps; Nadia’s square of barrel vault chambers, with their domed center; Hiroko’s greenhouse framework, its enclosing bubble gone; Nadia’s trench arcade off to the northwest; Chernobyl; the salt pyramids; and finally the Alchemist’s Quarter, where Sax ended his walk, wandering around in the warren of buildings and pipes, trying to ready himself for the next day’s experience. Trying for an open mind.

Already his memory was seething, as if trying to prove that it needed no help to do its work. Here among these buildings he had first witnessed the transformative power of technology over the blank materiality of nature; they had started with just rocks and gases, really, and from that they had extracted and purified and transformed and recombined and shaped, in so many different ways that no one person could keep good track of them all, nor even imagine their effect. So he had seen but he had not understood: and they had acted perpetually in ignorance of their true powers, and with (perhaps as a result) very little sense of what they were trying for. But there in the Alchemist’s Quarter, he hadn’t been able to see that. He had been so sure that the world made green would be a fine place.

Now here he stood in the open, head free under a blue sky, in the heat of second August, looking around and trying to think, to remember. It was hard to direct the memory; things simply occurred to him. The objects in the old part of town felt distinctly familiar, as in the word’s root meaning “of the family.” Even the individual red stones and boulders around the settlement, and all the bumps and hollows in view, were perfectly familiar, all still in their proper places on the compass flower. Prospects for the experiment seemed very good to Sax; they were in their place, in their context, situated, oriented. At home.