1914. For Paul, with love. Jewish silversmith Johann Blumenthal engraved those words on his most exquisite creation, a singing filigree bird inside a tiny ornamented box. He crafted this treasure for his young son before leaving to fight in a terrible war to honor his beloved country - a country that would soon turn against his own family. A half century later, Londoner Lilian Morrison inherits the box after the death of her parents. Though the silver is tarnished and dented, this much-loved treasure is also a link to an astonishing past.

American Josie Anderson and Parisian Arlette LaRue are thrilled to be working in the French resistance, stealing so many Nazi secrets that they become known as the Golden Doves, renowned across France and hunted by the Gestapo. Their courage will cost them everything. When they are finally arrested and taken to the Ravensbrück concentration camp, along with their loved ones, a reclusive Nazi doctor does unspeakable things to Josie’s mother, a celebrated Jewish singer who joined her daughter in Paris when the world seemed bright. And Arlette’s son is stolen from her, never to be seen again.

In enemy-occupied Paris, as the locals go to bed starving and defeated by the war, music and laughter spills through the door of a little restaurant, crowded with German soldiers. The owner, Marianne, moves on weary feet between its packed tables, carrying plates of steaming, wholesome food for the enemy officers. Her smile is bright and sparkling, her welcome cordial. Nobody would guess the hatred she hides in her heart. That night, the restaurant closes its doors for the final time.

Twenty-five years after the end of the war, Noah Ainsworth is still preoccupied with those perilous, exhilarating years as a British SOE operative in France. A head injury sustained on his final operation has caused frustrating gaps in his memory—in particular about the agent who saved his life during that mission gone wrong, whose real name he never knew, nor whether she even survived the war.

Berlin, 1930—When a wave of change sweeps a radical political party to power, Sofie von Meyer Rhodes’s academic husband benefits from the ambitions of its newly elected chancellor. Although Sofie and Jürgen do not share the social views growing popular in Hitler’s Germany, Jürgen’s position with its burgeoning rocket program changes their diminishing fortunes for the better. But as Sofie watches helplessly, her beloved Berlin begins to transform, forcing her to consider what they must sacrifice morally for their young family’s security, and what the price for their neutrality will be.

Berlin, 1941: Margarete Rosenbaum is working as a housemaid for a senior Nazi officer when his house is bombed, leaving her the only survivor. But when she’s mistaken for his daughter in the aftermath of the blast, Margarete knows she can make a bid for freedom.... Issued with temporary papers - and with the freedom of not being seen as Jewish - a few hours are all she needs to escape to relative safety. That is, until her former employer’s son, SS officer Wilhelm Huber, tracks her down.

Franciszka and her daughter, Helena, are simple, ordinary people until 1939, when the Nazis invade their homeland. Providing shelter to Jews in Nazi-occupied Poland is a death sentence, but Franciszka and Helena do exactly that. In their tiny home in Sokal, they hide a Jewish family in a loft above their pigsty, a Jewish doctor with his wife and son in a makeshift cellar under the kitchen, and a defecting German soldier in the attic - each party completely unknown to the others.

In the spring of 1942, young Elzbieta Rabinek is aware of the swiftly growing discord just beyond the courtyard of her comfortable Warsaw home. She has no fondness for the Germans who patrol her streets and impose their curfews, but has never given much thought to what goes on behind the walls that contain her Jewish neighbors. She knows all too well about German brutality - and that it's the reason she must conceal her true identity. But in befriending Sara, Elzbieta makes a discovery that propels her into a dangerous world of deception and heroism.

As the war begins, Hanna Rombauer, a young German woman, is sent to live with her aunt and uncle after her mother’s death. Thrown into a life of luxury she never expected, Hanna soon finds herself unwillingly matched with an SS officer twenty years her senior. The independence that her mother lovingly fostered in her is considered highly inappropriate as the future wife of an up-and-coming officer and she is sent to a “bride school.” There, in a posh villa on the outskirts of town, Hanna is taught how to be a “proper” German wife.

1937. Katya Komarovsky is studying medicine in Glasgow, living among friends and eager to begin her career as a doctor. But when her spendthrift parents announce that they’ve run out of money and are facing ruin—and that she’ll now have to support them by working as a governess in Vienna—the life she’s dreamed of goes up in smoke. Furiously resentful, Katya rages at her wealthy employer, Thor, for stealing her future—and saddling her with twelve-year-old Gretchen, a deeply troubled child who has only a blazing musical talent to redeem her.

Elise Chevalier knows what it is to love…and to hate. Her fiancé, a young French soldier, was killed by the German army at the Maginot Line. Living amongst the enemy, Elise must keep her rage buried deep within. Sebastian Kleinhaus no longer recognizes himself. Forced to join the Third Reich and wear a uniform he despises, he longs for a way out. For someone, anyone, to be his salvation.

Living on her family’s gorgeous lakeside estate in Cornwall, England, Alice Edevane is a bright, clever, inquisitive, innocent, and precociously talented fourteen-year-old who loves to write stories. But the mysteries she pens are no match for the one her family is about to endure ...One midsummer’s eve, after a beautiful party drawing hundreds of guests to the estate has ended, the Edevanes discover that their youngest son, Theo, has vanished without a trace.

Adelaide Hills, Christmas Eve, 1959. At the end of a scorching hot day, a local deliveryman makes a terrible discovery. A police investigation is called, and the small town of Tambilla becomes embroiled in one of the most shocking and perplexing murder cases in the history of South Australia. Many years later and thousands of miles away, Jess is a journalist in search of a story. Having lived and worked in London for nearly two decades, she now finds herself laid off from her full-time job and struggling to make ends meet. Until a phone call out of nowhere summons her back to Sydney.

London, 1933. At first glance, Austrian opera singer Elsa Mayer-Braun has little in common with the young English typist she encounters on tour. Yet she and Hattie Featherstone forge an instant connection—and strike a dangerous alliance. Using their friendship as a cover, they form a secret society with a daring goal: to rescue as many Jews as possible from Nazi persecution. Though the war’s outbreak threatens Elsa and Hattie’s network, their efforts attract the covert attention of the British government, offering more opportunities to thwart the Germans.

In a remote corner of France, Jewish refugee Ella Rosenthal has finally found a safe haven. It has been three years since she and her little sister, Hanni, left their parents to flee Nazi Germany, and they have been pursued and adrift in the chaos of war ever since. Now, they shelter among one hundred other young refugees in a derelict castle overseen by the Swiss Red Cross.