A Doctor Who adventure. Years after the extinction of its indigenous races, the sea-world of Coralee is populated by human and dolphin colonists. They are ignorant of what caused the original population to die out, but tales of vicious monsters proliferate.
- ISBN10 0563555777
- ISBN13 9780563555773
- Publish Date 7 June 1999 (first published 6 October 1997)
- Publish Status Out of Print
- Out of Print 5 July 2005
- Publish Country GB
- Publisher BBC Consumer Publishing
- Imprint BBC Books
- Format Paperback
- Pages 288
- Language English