At school in the 21st century, Cathy has a strange project: to find out about the season called winter which they used to have on Earth before the greenhouse effect, and to learn about the festival called Christmas which was celebrated then.
- ISBN10 0192716581
- ISBN13 9780192716583
- Publish Date 1 November 1991
- Publish Status Active
- Out of Print 23 June 2000
- Publish Country GB
- Imprint Oxford University Press
- Format Hardcover
- Pages 86
- Language English