And his appointment to the Intelligence Section of Britain's Air Ministry in 1939 led to some of the most astonishing scientific and technological breakthroughs of the Second World War.

In Most Secret War he details how Britain stealthily stole the war from under the Germans' noses by outsmarting their intelligence at every turn. He tells of the 'battle of the beams'; detecting and defeating flying bombs; using chaff to confuse radar; and many other ingenious ideas and devices.

'This is without question the most fascinating book about WW2 that I have ever read' 5 **** Reader Review

'I am glad I bought this book and I can recommend it to anybody who wants a highly readable account with plenty of detail' 5 **** Reader Review

'Such a great story with so many things you wouldn't expect. A very compelling read that holds your attention' 5 **** Reader Review