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205 pages, Hardcover
First published June 1, 2003
Consider the situation of Olive Roddam, the daughter of a wealthy Northumberland landowner whose family found her an intelligence position to help her forget the death of her fiancé in 1914. She was hired at I. D. 25 [the cryptanalysis section of the Admiralty] to serve as secretary to cryptographer A. D. (Dilly) Knox. A brilliant recruit from Cambridge, Knox was known for the eccentric habit of breaking codes while sitting in a bathtub installed in the tiny room he used as an office. Perhaps unsurprisingly, given the nature and hours of such work, Roddam and Knox married in July of 1920.