nothing would have meaning, because the knowing was itself the meaning; beyond that there was nothing to know.

He did not think of himself as a tourist; he was a traveler. The difference is partly one of time, he would explain. Whereas the tourist generally hurries back home at the end of a few weeks or months, the traveler, belonging no more to one place than to the next, moves slowly, over periods of years, from one part of the earth to another.

"You know," said Port, and his voice sounded unreal, as voices are likely to do after a long pause in an utterly silent spot, "the sky here's very strange. I often have the sensation when I look at it that it's a solid thing up there, protecting us from what's behind."

Kit shuddered slightly as she said: "From behind?"
"Yes."
"But what is behind?" Her voice was very small.
"Nothing, I suppose. Just darkness. Absolute night."