A historian's new book examines the valiant spying effort made at a highly secretive house in Buckinghamshire, which may have saved London from the same fate as Hiroshima. Dr Helen Fry has written Spymaster: The Secret Life of Kendrick, which tells the story of the top M16 officer at the heart of Britain's Second World War intelligence work, Colonel Thomas Kendrick. From 1942, he worked for the British Secret Service from Latimer House near Chesham where he led the operation of spying on German prisoners of war and eavesdropping their conversations. Dr Fry said: "I find the topic fascinating, I wanted to find out more and more and uncover it in the book. Kendrick has not had much attention and he has taken a lot to his grave, I wanted to record it."...