by RobertAllen (Author)
Over 100 secret messages to solve and crazy codes to crack. Each story involves some sort of code, such as a mystery letter or secret message, which you need to crack to find the hidden meaning.
Format: Paperback
Pages: 224
Edition: New
Publisher: Carlton Books Ltd
Published: 01 Jun 1997
ISBN 10: 1858683122
ISBN 13: 9781858683126