Publisher's Synopsis
Alfred Dillwyn Knox, known as Dilly, was a famously eccentric and temperamental codebreaker who cracked German ciphers in both wars and decoded the Herodas papyri. Knox, the son of a famous religious scholar, worked in the AdmiraltyÆs Room 40 codebreaking operation during the First World War, breaking the German AdmiralÆs Flag Code. Between the wars he deciphered the text of the Herodas papyri and broke the Enigma cipher machine used by FrancoÆs royalist forces during the Spanish civil war. He was BritainÆs chief cryptographer during the Second World
