A statue of a mermaid proves to be a vital clue when the three investigators set out to trace a missing child.
- ISBN10 0394958756
- ISBN13 9780394958750
- Publish Date 12 September 1983
- Publish Status Out of Print
- Out of Print 15 June 2011
- Publish Country US
- Imprint Random House Books for Young Readers
- Format Hardcover
- Language English