A young hippo is worried and concerned when his mother, caught up in an unexpected delay, is late picking him up from school.
- ISBN10 0670814083
- ISBN13 9780670814084
- Publish Date 1 June 1987
- Publish Status Out of Print
- Out of Print 29 January 2010
- Publish Country US
- Imprint Penguin Books Ltd
- Format Hardcover
- Pages 32
- Language English