Secret Codes & Invisible Ink: How History’s Spies Hid Their Messages!

Discover the fascinating world of early cryptography! From lemon juice invisible ink to the Caesar cipher, learn how spies like Mary, Queen of Scots used secret codes to protect their secrets—and how cracking these codes changed history. Dive into the origins of encryption that still protect our data today. Could ancient mysteries be waiting for us to decode them? Watch now to unlock the secrets!