A mysterious book packed with over 65 different puzzles - can you solve it in less than a month? Every page has a hidden message to reveal, with visual and written clues to help you crack the code.
Dr Gareth Moore is the author of a wide range of brain-training and puzzle books for both children and adults, including best-selling Ordnance Survey Puzzle Book, Brain Games for Clever Kids and The Mammoth Book of New Sudoku.
Look I get hard puzzle books, but this was like too much. I loved the clues system in the website but the clues were completly useless. Mostly they just said the same thing over and over again just in a different way. Maybe I am dumb but after this book I felt even dumber.