Agatha Christie up to the last chapter, then decided who the most unlikely suspect was, after which she would go back and make the necessary changes to "frame" that person. However, John Curran's "Agatha Christie: The Secret Notebooks" describes different working methods for every book in Christie's bibliography, contradicting the claim by Aldiss. Christie's mature novels, from 1940 onwards, often have titles drawn from literature. Four are from Shakespeare: Three are from the Bible: Another six are from other works of literature: In such cases, the original context of the title is usually printed as an epigraph. Similarly, the title of Christie's
Agatha Christie researchers have suggested that Christie may have begun to suffer from Alzheimer's disease or other dementia. Dame Agatha Christie died on 12 January 1976 at age 85 from natural causes at her home Winterbrook House which was located in Winterbrook, Wallingford, Oxfordshire. At the time of her death Winterbrook was still a part of the parish of Cholsey. She is buried in the nearby churchyard of St Mary's, Cholsey, having chosen the plot for their final resting place with her husband Sir Max some ten years before she died. The simple funeral service was attended by about 20 newspaper and