The Bletchley GirlsThe Bletchley Girls weaves together the lives of fifteen women who were all selected to work in Britain's most secret organisation Bletchley Park. It is their story, told in their voices; Tessa met and talked to 15 veterans, often visiting them several times. Firm friendships were made as their epic journey unfolded on paper. The scale of female involvement in Britain during the Second World War wasn't matched in any other country. From 8 million