There is a code for every occasion in this b ook. Young readers can find out how to invent their own sets of secret signals and how to scramble messages in countless different ways. '
- ISBN10 074602794X
- ISBN13 9780746027943
- Publish Date 31 December 1995
- Publish Status Out of Print
- Out of Print 20 July 2000
- Publish Country GB
- Imprint Usborne Publishing Ltd
- Format Paperback
- Pages 32
- Language English