Deadly Cypher

A USA Today Bestseller! Could a murder at Bletchley Park cost Britain the war? November, 1939. The British government has assembled a small group of intellectuals at an estate north of London as part of a top-secret codebreaking effort. Everything about it is clandestine. The facility is ringed with a veil of silence until one of the young female linguists is murdered. Britain's counterintelligenc...