Vienna, 1937. When beautiful American Kitty becomes engaged to Austrian diplomat Edgar, she finds herself thrown into a very different world in Europe, and soon longs for home. But when the woman designing her wedding dress, Judith, takes Kitty under her wing, she sees the city of Vienna in a new light–a city of culture and music that she can explore with her new friend.

Holding the faded postcard in her trembling hands, Mia begins to read the one story her grandmother could never tell her, revealing a secret that will change her own life forever....

Phoebe is a VAD at a Base Hospital in Étaples, France, treating men who’ve served at the Front. Their courage and resilience inspires her, and though she’s meant to keep her distance, Captain Archie Bailey soon captivates her heart. Her younger sister Celia is a nurse at a POW camp on the island of Jersey. These men fight for the forces that bombed her brother and parents, but long hours spent healing them shows her they aren’t the monsters she expected.

When Nazis break down the front door of 18-year-old Trudi’s home and seize the Jewish couple hiding in her attic, she’s devastated, and is suddenly solely responsible for their two innocent children. The whispered rumours about the resistance are her only hope. A man called Frans and his cousin Piet risk their lives every day helping scared and abandoned Jewish children escape into the countryside. Under the cover of night, she races to beg for their help.

When three little girls—Anna, Bernie, and Elica—make a pact to be blood sisters for life, they believe nothing can come between them. Anna is from an affluent Jewish family, while Bernie and Elica are from poor Austrian families who barely make ends meet. As they get older, their social differences become all too real. With infectious Jew-hate-laden rhetoric from Nazi Germany spreading into Austria, it is only a matter of time before their bond of friendship gets severely tested.