Light on Bottom...
The light was artificial. Believe it if you can. I realise that for a normal person it's hard. Wasting watts to light up the outdoors is bad enough. Spending the world's limited power to illuminate the sea bottom, though - well, for a few moments I was too furious to think straight. My job has brought me into contact with people who were careless with energy, with people who stole it, and even with people who misused it; but this was a brand-new dimension!
I was lower now and could see acres and acres of light stretching off to the north, east, and west until it blurred out of sight. Acres and acres lighted by things suspended a few yards above the level bottom, things visible only as black specks in the centre of slightly brighter areas.
Then I got my anger under control, or maybe my fear did it for me. I suddenly realised that if I hit bottom the way I was heading I might never be able to get back to the...
Ocean on Top.
Hal Clement (1922 - 2003)
Hal Clement is the nom de plume under which Harry Clement Stubbs wrote science fiction. Born in Massachusetts in 1922, he graduated from Harvard with a BSc. in astronomy, and later added degrees in chemistry and education. A former B-24 pilot who saw active service during the Second World War, he worked for most of his life as a high-school science teacher. He made his reputation as an SF writer with the work that appeared in Astounding, where his best-known novel, Mission of Gravity, first appeared in serialised form in 1953.