Detective duo, Frank and Joe Hardy, learn that the headmaster of The Wills Frith Academy is in peril along with his daughter - and maybe even the Hardy's are as well! Can the boys wrap up their mission before someone loses a life?
- ISBN10 184738952X
- ISBN13 9781847389527
- Publish Date 1 April 2010 (first published 9 March 2010)
- Publish Status Active
- Publish Country GB
- Publisher Simon & Schuster Ltd
- Imprint Simon & Schuster Childrens Books
- Format Paperback (B-Format (198x129 mm))
- Pages 160
- Language English