ISBN: | 9780241365458 |
Publisher: | Penguin eBooks |
Published: | 18 October, 2018 |
Format: | eBook |
Language: | English |
Links | Penguin AU |
Editions: |
4 other editions
of this product
|
The long-awaited and brain-busting sequel from the UK's finest codebreakers and puzzle-solvers at GCHQ.'Fiendishly tricky' Daily MailWith their first bestselling book, The GCHQ Puzzle
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