It is 1917, and Private Daniel Dawkins fights at Messines Ridge and Passchendaele. He writes home to his true love, Joyce, but reveals little of his extreme bravery, his kindness, his loyalty to his comrades, and the horrors they experience on the Western Front. It is 1920, and Captain Peter Harding is tasked with a secret mission to assist in the selection of a body. Dug up from the battlefields of Flanders, it's to be buried in Westminster Abbey as the "Unknown Warrior." The events that take place on the expedition will haunt Peter for the rest of his life. Nearly a century later, in 2011, Sarah Harding discovers Daniel's letters and Peter's diaries. Together with historian James Marchant, she pieces together the hidden truth behind the Tomb of the Unknown Warrior and must decide what to do with it. Values are challenged and characters are tested in this gripping novel that asks: What would happen if the identity of the Unknown Soldier was discovered? And should the secret ever be revealed?