Agatha Christie was a legendary English writer who ranks as one of the best-selling authors in history. Christie wrote more than 65 crime novels, fourteen short story collections, and the classic play The Mousetrap in a career that spanned over fifty five years. The Mysterious Affair at Styles, published in 1920, is Christie's first novel. The book is set in England during World War I and centers around a murder mystery featuring many suspects with potential motives. The book is also notable for introducing readers to Hercule Poirot, a popular detective that appears in many of Christie's novels.