When they help restore the Skeleton Reef Lighthouse for the Oakland Historical Society, Joe and Wishbone discover that the lighthouse holds the key to incredible treasure and to some dark and dangerous secrets.
- ISBN10 0836823826
- ISBN13 9780836823820
- Publish Date 1 May 1999 (first published 1 November 1997)
- Publish Status Out of Print
- Out of Print 22 June 2021
- Publish Country US
- Imprint Gareth Stevens Publishing
- Edition Large type / large print edition
- Format Hardcover
- Language English