The secret agent training manual how to make and break top secret messages

"Want to learn how to make and break top secret messages like a real spy? IF so, this is the book for you! Inside are more than 80 pages of tips, tricks, and practice exercises for writing and deciphering cryptic communications. You'll learn how to make your own invisible ink, hide your messages, cr...

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Bibliographic Details

Main Author:	Hunt, Elizabeth Singer (Author)
Other Authors:	Williamson, Brian, 1969- (Illustrator)
Format:	Books Print Book
Language:	English
Published:	New York : Weinstein Books, [2017].
Edition:	First edition
Subjects:	Ciphers > Juvenile nonfiction. Cryptography > Juvenile nonfiction. Signs and symbols > Juvenile nonfiction.
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