"Move over, James Bond! A new spy is in town! After reading this handbook, boys will be able to send messages written in invisible ink, to invent and read secret codes, to construct hiding places for important items, and much more. With these tricks up their sleeves, the sky's the limit in what will be a promising career of espionage"--Provided by the publisher.
General Note
Includes glossary.
Content Note
What is a spy? -- Make a spy periscope -- Invisible ink messages -- Secret spy codes -- Confidential cookies -- Secret-compartment book -- Fingerprint powder.