A boy and his dog imagine they see dinosaurs under every pile of snow until they find a big surprise under an especially large one.
- ISBN10 0590418009
- ISBN13 9780590418003
- Publish Date 31 December 1987 (first published 1 January 1987)
- Publish Status Unknown
- Out of Print 14 June 2021
- Publish Country GB
- Imprint Scholastic
- Format Paperback
- Language English