This collection of 140 intriguing and challenging codebreaking puzzles are produced in association with the Bletchley Park Trust. Follow in the footsteps of World War II codebreakers and decode the encrypted messages within. These puzzles include: • Anagrams • Logical reasoning • Encryption word problems • Logic grids •And more! ABOUT THE SERIES: This series of fun and stylish puzzle books are produced in association with the Bletchley Park Trust, a vibrant and fascinating heritage site celebrating the World War II codebreakers who were stationed there.