A cryptic message forces eighteen-year-old American Edda to investigate what secrets followed her across the ocean, even as she tries to make sense of her time as a telephone operator on the French front lines of World War I.

Germany, 1945. The soldiers who liberated the Gross-Rosen concentration camp said the war was over, but nothing feels over to eighteen-year-old Zofia Lederman. Her body has barely begun to heal; her mind feels broken. And her life is completely shattered: Three years ago, she and her younger brother, Abek, were the only members of their family to be sent to the right, away from the gas chambers of Auschwitz-Birkenau. Everyone else--her parents, her grandmother, radiant Aunt Maja--they went left. Zofia's last words to her brother were a promise: Abek to Zofia, A to Z. When I find you again, we will fill our alphabet. Now her journey to fulfill that vow takes her through Poland and Germany, and into a displaced persons camp where everyone she meets is trying to piece together a future from a painful past: Miriam, desperately searching for the twin she was separated from after they survived medical experimentation. Breine, a former heiress, who now longs only for a simple wedding with her new fiancé. And Josef, who guards his past behind a wall of secrets, and is beautiful and strange and magnetic all at once. But the deeper Zofia digs, the more impossible her search seems. How can she find one boy in a sea of the missing? In the rubble of a broken continent, Zofia must delve into a mystery whose answers could break her--or help her rebuild her world.

New from Monica Hesse, the bestselling and award-winning author ofGirl in the Blue Coat--an "important" (New York Times Book Review), "extraordinary" (Booklist, starred review)novel of conviction, friendship, and betrayal. "Amust-readfor fans of historical fiction." --Ruta Sepetys, #1New York Timesbestselling author It's 1944, and World War II is raging across Europe and the Pacific. The war seemed far away from Margot in Iowa and Haruko in Colorado--until they were uprooted to dusty Texas, all because of the places their parents once called home: Germany and Japan. Haruko and Margot meet at the high school in Crystal City, a "family internment camp" for those accused of colluding with the enemy. The teens discover that they are polar opposites in so many ways, except for one that seems to override all the others: the camp is changing them, day by day and piece by piece. Haruko finds herself consumed by fear for her soldier brother and distrust of her father, who she knows is keeping something from her. And Margot is doing everything she can to keep her family whole as her mother's health deteriorates and her rational, patriotic father becomes a man who distrusts America and fraternizes with Nazis. With everything around them falling apart, Margot and Haruko find solace in their growing, secret friendship. But in a prison the government has deemed full of spies, can they trust anyone--even each other?