Kin Karad works for the Company. Her job is to oversee the creation of planets. Some of the workers like to play jokes on future inhabitants. The one she has discovered this time is a plesiosaur in the wrong stratum holding a placard reading “End Nuclear Testing Now”. While she is impressed with the inventiveness of the culprit, Kin is getting tired of her life. It has been a long one.
Then she meets a mysterious person who invites her on a journey. Kin Karad decides to go and when she gets to the spaceship she discovers that she is alone, but will be picking up two companions – a kung called Marco Farfarer, and Silver the Shandi. They are told that they will be going to a flat world.
The spaceship takes off and off they go on their adventure.
Strata precedes Pratchett’s Discworld series, but we clearly see how the foundations are laid for the later series. Kin Karad and her fellow explorers are fun characters with clearly defined personalities. Plays on words and concepts are obvious from the first pages. Pratchett was a pretty good author even back in his early days.