What your friend told you of his seeing of the time wall is true, Henry said in Boone's mind. I know he saw it, although imperfectly. Your friend is most unusual. So far as I know, no other human actually can see it; although there are ways of detecting time. I tried to show him a sniffler. There are a number of snifflers, trying to sniff out the bubble. They know there's something strange, but don't know what it is.

'They changed,' said Enid, 'from corporeal beings, from biological beings, to incorporeal beings, immaterial, pure intelligences. They now are ranged in huge c…

'We have time travel,' she said, 'and none of us, I am sure, really understands it. We stole it from the Infinites. To steal time travel was the one way we cou…

'We're very close to immortal, you know. The time mechanism keeps it that way.' 'No, I hadn't known,' said Boone. 'Inside the time bubble we do not age. We age…