Secret Messages (Good Detective Guides)
Description:
A Good Spy communicates with other members of his Spy Ring in special ways. They have a 'drop system' (a spy post-office) so that they can secretly pass messages even if they are watched by Enemy Spies. They have code books and secret plans and special code rings for sending signals in a crowded room. \nThat is what this book is all about. It shows you how to write code messages and disguise them, how to guard your secret systems, and how to set up traps and fool the Enemy.\nThere are instructions for making a miniature spy kit that holds everything you need for your spy messages. There are puzzles to test your skills and tips for practising code-breaking and secret teamwork. And there are instant codes, too - so that you and your Contacts can set up a Spy Ring and begin your work at once.
Best prices to buy, sell, or rent ISBN 9780860202011
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