Agatha Christie's novels have been translated into 44 languages and sold in 103 countries. After Shakespeare, she is the world's bestselling author in any genre with more than 2 billion books sold. On the 75th anniversary of the creation of one of her most famous characters, the immortal spinster sleuth Miss Maple, comes THE AGATHA CHRISTIE CODE. In a game of sleuth and deduction it sets out to solve one of the greatest puzzles - just what makes Agatha Christie such a successful writer?