Rachel Kehoe

Humans have been keeping secrets for generations and using cryptology to make sure those secrets don’t fall into the wrong hands.

From the development of ancient Greek ciphers, to the creation of the

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• Series: Orca Timeline
• Author: Kehoe, Rachel
• Binding: Hardcover
• Page Count: 96
• Publish Date: September 16 2025
• ISBN10: 1459839595
• Language: English