Experience 500 years of British espionage history with more than 130 authentic puzzles. This book reveals spy mysteries through original documents, maps, codes, and telegrams, including the Gunpowder Plot, Mata Hari, and secret agent Zigzag. All puzzles are based on historical codes and riddles.
Tropes:
- 🕵️ Spies
- 🔐 Secret Codes
- 🧩 Historical Mysteries
- ♐️ Secret Agents
- 📜 Hidden Secrets
- 🧩 Cryptic Puzzles

