|summary=Entertaining story with lots of fun word and number play involved. Recommended reading for children and parents.
|cover=178127102X
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|aznus=178127102X
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Elliot is twelve. He's obsessed with numbers and letters, especially palindromes. He loves to spend his spare time playing about with words or numbers, when he can avoid school bully Victor Criddle, his arch-enemy. But when ''the biggest mystery that struck our school in the history of the world'' has to be solved, Elliot's forced to use all of his brain power.