Three stories featuring Mikey and Dorothy, two hippopotamus friends that play and compete with one another.
- ISBN10 0399233563
- ISBN13 9780399233562
- Publish Date 30 June 2000
- Publish Status Out of Print
- Out of Print 10 October 2009
- Publish Country GB
- Imprint Penguin Books Ltd
- Format Paperback
- Language English