On a cold ANZAC morning, in a war cemetery on the wrong side of the world, Ellie kneels at the grave of a New Zealand pilot who died over the North Sea in 1943, and feels her restless heart go, impossibly, still.
She cannot explain the grave, or what comes when she lays her hand on the stone: a blacked-out England, a switchboard, a man called John, and one small word she was too frightened to say out loud.
Then a war reporter turns up at the same grave, chasing the same dead pilot, carrying a nightmare he has had since he was a boy. A plane on fire. Black water. The short way home.
Eighty years ago, fear cost two people everything they might have been to each other. Now the same love has come round again, and the same choice is waiting.
Some things are true whether or not you can say them out loud.