While staying at a summer camp near Fort Davis, Texas, Joanna and her sister Sally Rachel become involved in mysterious activities both at the fort and a nearby observatory.
- ISBN10 1571684514
- ISBN13 9781571684516
- Publish Date 1 January 2001
- Publish Status Active
- Publish Country US
- Imprint Eakin Press
- Format Hardcover
- Pages 153
- Language English