Communicate through secret messages and go on missions just like real spies;Explains how to create and discover cryptic messages;(18) different missions teach you how to use invisible ink, various Ciphers, Polybius Checkerboard, Braille, basic code breaking tools and more;Step-by-step instructions make it easy for your child and a friend to start and finish these activities;Recommended for children 8-years of age and older

• Scientific Explorer Secret Messages Kit
• multi/none

Scientific Explorer Secret Messages KitScientific Explorer