Tantalising' Sunday Times'Thoroughly enjoyable' Guardian'Irresistibly charged' Mail on Sunday

No one looks twice at the women in the typing pool. No one knows that two of them are trading secrets. The secret is a book, the size of the one in your hands, and within its pages, a love story that could change the world.But where there is love there is pain. And where there is deception, formidable danger...

'Mixing Mad Men and John le Carre ...addictive' i paper'Utterly compelling... I absolutely loved it' Sarah Winman