Green Mars - Kim Stanley Robinson [18]
The sun rose higher, illuminating the great curve of the cliff from above. It was deeply cut by ravines and smaller craters. “Prometheus Sanctuary is in the side of that big indentation there,” Coyote said, and pointed to the left side of the curve. “Crater Wj.”
As they waited through the long day Nirgal looked at the gigantic cliff almost continuously, and each time it looked different, as the shadows shortened and shifted, revealing new features and obscuring others. It would have taken years of looking to see it all, and he found he could not overcome the feeling that the wall was unnaturally or even impossibly huge. Coyote was right— the tight horizons had fooled him— he had not imagined the world could be so big.
That night they drove into Crater Wj, one of the biggest embayments in the giant wall. And then they reached the curving cliff of Promethei Rupes. The cliff towered over them like the vertical side of the universe itself; the polar cap was nothing compared to this rock mass. Which meant that the Olympus Mons cliff that Coyote had mentioned would have to be. . . . He didn’t know how to think it.
Down at the foot of the cliff, at a spot where unbroken rock dropped almost vertically into flat sand, there was a recessed lock door. Inside was the sanctuary called Prometheus, a collection of wide chambers stacked like the rooms of a bamboo house, with incurving filtered windows overlooking Crater Wj and the larger basin beyond. The inhabitants of the sanctuary spoke French, and so did Coyote when talking to them. They were not as old as Coyote or the other issei, but they were pretty old, and of Terran height, which meant they mostly looked up to Nirgal, while speaking very hospitably to him, in fluent but accented English. “So you are Nirgal! Enchanté! We have heard of you, we are happy to meet you!”
A group of them showed him around while Coyote did other things. Their sanctuary was very unlike Zygote; it was, to put it plainly, nothing but rooms. There were several large ones stacked by the wall, with smaller ones at the back of these. Three of the window rooms were greenhouses, and all the rooms throughout the refuge were kept very warm, and filled with plants and wall hangings and statuary and fountains; to Nirgal it seemed confining, and much too hot, and utterly fascinating.
But they only stayed a day, and then they drove Coyote’s car into a big elevator, and sat in it for an hour. When Coyote drove out the opposite door they were on top of the rugged plateau that lay behind Promethei Rupes. And here Nirgal was once again shocked. When they had been down at Ray’s Lookout, the great cliff had formed a limit to what they could see, and he had been able to comprehend it. But on top of the cliff, looking back down, the distances were so great that Nirgal could not grasp what he saw. It was nothing but a blurry vertiginous mass of blobs and patches of color— white, purple, brown, tan, rust, white; it made him queasy. “Storm coming in,” Coyote said, and suddenly Nirgal saw that the colors above them were a fleet of tall solid clouds, sailing through a violet sky with the sun well to the west— the clouds whitish above and infinitely lobed, but dark gray on their bottoms. These cloud bottoms were closer to their heads than the ground of the basin, and they were level, as if rolling over a transparent floor. The world below was nothing so even, mottled tan and chocolate— ah, those were the shadows of the clouds, visibly moving. And that white crescent out in the middle of things was the polar cap! They could see all the way home! Recognizing the ice gave