Decode messages, untangle clues, and test your logic with 134 addictive and exciting Murdle-style puzzles based on 500 years of British espionage history, from Britain's preeminent puzzle master with the support of The National Archives, UK.

Britain's leading puzzle master, Dr. Gareth Moore, has plumbed the depths of the UK's National Archives to transform the best in espionage history into 134 thrilling puzzles that you can solve from the comfort of your couch. Decipher encoded messages to stop treason in its tracks, assemble clues to intercept dangerous missives, and put your logic to the test as you uncover enemy locations and support rescue missions.

Spydle puts you right into the center of the action with tales of espionage and intrigue from Thomas Cromwell's spy network to Guy Fawkes, Mata Hari, the Enigma machine, and more. With puzzles across an array of difficulty levels, alongside photographs of the real papers, cyphers, and spies from throughout British history, Spydle is a must-have activity book for the spy, sleuth, and mystery lover in all of us.