Strata by Terry Pratchett
Corgi Books, 1989 (Reprint)
Originally published by Colin Smythe Ltd., 1981
Price I paid: none
The excavation showed that the fossilized plesiosaur had been holding a placard which read, ‘End Nuclear Testing Now.’
That was nothing unusual.
But then came a discovery of something which did intrigue Kin Arad.
A flat earth was something new…