The story begins with a mysterious egg washed up on a Scottish beach, the morning after a great storm. Kirstie and her brother Angus find the egg and take it home. The next day it has hatched into a tiny greeny-grey creature with a horse's head, warty skin, four flippers and a crocodile's tail. The baby sea monster soon becomes the family pet - but the trouble is, it just doesn't stop growing!
- ISBN10 0141302232
- ISBN13 9780141302232
- Publish Date 3 January 2008 (first published 27 September 1990)
- Publish Status Active
- Publish Country GB
- Publisher Penguin Putnam Inc
- Imprint Puffin
- Format Paperback (B-Format (198x129 mm))
- Pages 96
- Language English
- URL https://penguinrandomhouse.ca/books/isbn/9780141302232