England, 1939: The Penrose sisters couldn't be more different. Skye is a daring and brash pilot, and Liberty is the one to defy her at every turn. Even if women aren't allowed in the Royal Air Force, Skye is determined to help the war effort. She's thrilled when it reunites her with her childhood soul mate, Nicholas. She's less thrilled to learn Nicholas is now engaged to an enigmatic Frenchwoman named Margaux Jourdan. 

A door slammed and the unmistakable sound of boots came crashing up the hall. Liese held her little daughter’s hand so tightly, the tiny fingers had turned purple. The SS officer’s hand was at Liese’s throat before she saw him move. "I can kill you easily, then I can kill your daughter." He relaxed his grip a little. "Or perhaps I could kill her first?" England, 40 years later. When Karen Cartwright is unexpectedly called home to nurse her ailing father, she goes with a heavy heart. 

Lina Meisel, a retired librarian in Florida, is reading the newspaper one morning when she freezes. Her eyes lock on a photograph of a book she hasn’t seen in 65 years - a book she recognizes as The Book of Lost Names. The accompanying article discusses the looting of libraries by the Nazis across Europe during World War II - an experience Lina remembers well - and the search to reunite people with the texts stolen from them so long ago. The book in the photograph is one of the most fascinating cases.

Celebrated singer Genevieve Dumont is both a star and a smokescreen. An unwilling darling of the Nazis, the chanteuse’s position of privilege allows her to go undetected as an ally to the resistance. When her estranged mother, Lillian de Rocheford, is captured by Nazis, Genevieve knows it won’t be long before the Gestapo succeeds in torturing information out of Lillian that will derail the upcoming allied invasion. The resistance movement is tasked with silencing her by any means necessary - including assassination. 

As the dutiful daughter of a high-ranking Nazi officer, Hetty Heinrich is keen to play her part in the glorious new Thousand Year Reich. But she never imagines that all she believes and knows about her world will come into stark conflict when she encounters Walter, a Jewish friend from the past, who stirs dangerous feelings in her. Confused and conflicted, Hetty doesn’t know whom she can trust and where she can turn to, especially when she discovers that someone has been watching her.