Eva Traube Abrams, a semiretired librarian in Florida, is at the returns desk one morning when her eyes lock on to a photograph in a newspaper nearby. She freezes; it's an image of a book she hasn't seen in sixty-five years--a book she recognizes as the Book of Lost Names. The accompanying article describes the looting of libraries across Europe by the Nazis during World War II--an experience Eva remembers all too well. As a graduate student in 1942, Eva was forced to flee Paris after the arrest of her father, a Polish Jew. Finding refuge in a small mountain town in the Free Zone, she begins forging identity documents for Jewish children fleeing to neutral Switzerland. But erasing people comes with a price, and along with a mysterious, handsome forger named Rémy, Eva decides she must find a way to preserve the real names of the children who are too young to remember who they really are. The records they keep in the Book of Last Names will become even more vital when the Resistance cell they work with is betrayed and Rémy disappears. As the Germans close in, Eva records a last, vital message in the book. Decades later, does she have the strength to seek out its answer--and help reunite those lost during the war?