To Lucy Worsley, Agatha Christie was 'thrillingly, scintillatingly modern'. She went surfing in Hawaii, she loved fast cars, and she was intrigued by the new science of psychology, which helped her through devastating mental illness. Born in 1890, Christie defied societal expectations the whole of her life.

With access to personal letters and papers that have rarely been seen, Lucy Worsley's bestselling biography is both authoritative and entertaining and makes us realise what an extraordinary pioneer Agatha Christie was - truly a woman who wrote the twentieth century.