Enid Blyton was a prolific English children's writer who was born in 1897 in London. She wrote over 800 books that sold over 600 million copies and were translated into nearly 90 languages. Some of her most famous works included the Famous Five, Secret Seven, and Noddy series. Blyton married twice, first to Hugh Pollock and later to Kenneth Darrell Waters after divorcing Pollock. She had two daughters but struggled with the mental decline of possible Alzheimer's disease late in life, finding it difficult to concentrate on writing before dying in her sleep at a nursing home in 1968.