In the pre-internet era, encryption was a matter of life and death, and the motives behind these ciphers were varied and complex. Discover how George Lasry, a modern codebreaker, uncovered the secrets of Mary, Queen of Scots, hidden in the French National Library for over 400 years. This episode delves into the painstaking process and the historical impact of decoding these ancient messages, revealing the hidden motives and desperate actions of a doomed queen.