In the story telling style of Kristin Hannah and Delia Owens, in 2015. Prospect Park, Pennsylvania. Suzanne Ryan uncovers her grandmother's diary hidden in the binding of a century-old photo album and as she reads, she is transported to 1915 where Maude Brewer, her grandmother, Maude's brother, Henry, and his best friend, Buzz Ryan, live a relatively care-free existence. But the darkening conflict in Europe looms, threatening them all with the fight of their lives. At the same time, across the ocean, darkness has already fallen as the Germans march into neutral Belgium and shatter the life of nurse Marthe Peeters, whose family is viciously killed right in front of her. She is captured and forced to travel with the German Army, each step escalating the rage in her heart that explodes into plans for revenge. But as Maude's story unfolds through the years, it intersects with Marthe's and despite the fact that an ocean separates them, it is clear that the two women share their perspectives on the war. They also, Suzanne learns, share the love of the same man, Buzz Ryan, Suzanne's grandfather. Buzz must not only fight the war on the battlefield, he must also fight the war within his heart.