In an extraordinary day at the beach, after winning a sand castle contest, two sets of twins resolve the mystery of the disappearance of a rich woman's dog.
- ISBN10 0670821500
- ISBN13 9780670821501
- Publish Date November 1998
- Publish Status Out of Print
- Out of Print 25 October 2004
- Publish Country GB
- Publisher Penguin Books Australia
- Imprint Viking Children's Books
- Format Hardcover
- Pages 51
- Language English