The discovery of a bottle containing a coded message leads two boys to a new friend with whom they form a club.
- ISBN10 0064440354
- ISBN13 9780064440356
- Publish Date 1 September 1982 (first published 1 January 1963)
- Publish Status Out of Print
- Out of Print 14 April 2015
- Publish Country US
- Publisher HarperCollins Publishers
- Imprint Collins
- Format Paperback (US Trade)
- Pages 64
- Language English