Harvey agrees to go to school with Harry and Sally as part of a lesson on Mountain Rescue. However, his visit coincides with a real mystery - which it takes all his powers to solve. '
- ISBN10 1860393462
- ISBN13 9781860393464
- Publish Date 1 August 1998
- Publish Status Out of Print
- Out of Print 7 November 2009
- Publish Country GB
- Publisher Hachette Children's Group
- Imprint Orchard Books
- Edition New edition
- Format Paperback (B-Format (198x129 mm))
- Pages 64
- Language English