GCHQ PUZZLE BOOK II (PB) (NEW)

For those who often found themselves stumped with the first book, this sequel offers more starter puzzles to get those brains warmed up. Puzzle aficionados needn't worry though, as there is an 'Even Harder' section to test everyone to their limits. In recognition of GCHQ's recent centenary, the puzzles sit alongside stories, facts and photos from the organisation's first 100 years. Republished in a smaller format.