This is the first volume of Nigel West's acclaimed presentation of these fascinating diaries from the heart of Britain's Second World War intelligence operations.

'No intelligence buff can be without this volume and anyone interested in British twentieth century history needs it too.'

M.R.D. Foot, The Spectator

'Regarded by historians as the most important military intelligence documents from the whole of the Second World War.'

Irish Independent

' A] unique insight into the espionage secrets of the Second World War. Its historical...