Having been used by the King to trick a unicorn into imprisonment, Zoe decides to set him free again.
- ISBN10 0385410255
- ISBN13 9780385410250
- Publish Date 4 November 1999
- Publish Status Out of Print
- Out of Print 24 February 2005
- Publish Country GB
- Publisher Penguin Random House Children's UK
- Imprint Doubleday Children's Books
- Format Hardcover
- Pages 32
- Language English