A boy who believes his grandfather to be a traitor, a spy who turned against England and then disappeared, tracks down his grandfather and finds out the truth.
- ISBN10 144068877X
- ISBN13 9781440688775
- Publish Date 6 July 2006 (first published 1 October 2005)
- Publish Status Unknown
- Out of Print 11 April 2013
- Publish Country US
- Imprint Puffin Books
- Format eBook
- Pages 288
- Language English