Graham Greene called him ‘the greatest novelist of my generation’; Hilaire Belloc thought he was possessed by the devil. Written with the family’s support and drawing on unpublished letters, diaries and memoirs, the compelling new biography reassesses the life and career of the author of Brideshead Revisited: his troubled relationship with his father, his early homosexual affairs, his conversion to Catholicism, his wartime service, his happy second marriage, his drug-induced madness, and his sharp tongue and devastating wit.