Author Robert Harris discovers adulterous affair was cause of military and political crises at the onset of first world war
She was a young aristocrat who knew all the “best” people. He was an ageing politician leading a nation on the brink of international conflict. Yet their passionate weekly trysts in the back of the official prime-ministerial car changed the course of history.
Add the fact that our heroine was the closest friend of our hero’s daughter, and it reads like the tagline for a tale of forbidden love and secrecy in high places. But it happens to be true.