Nancy and her friends establish headquarters in a seaside yacht club to investigate strange happenings in a book store and the disappearance of a marble statue.
- ISBN10 0685018350
- ISBN13 9780685018354
- Publish Date 1 December 1937 (first published 1 September 1937)
- Publish Status Out of Print
- Out of Print 9 November 2015
- Publish Country US
- Imprint Putnam Publishing Group
- Format Hardcover (Library Binding)
- Language English