From the New York Times best-selling author of Mrs. Lincoln’s Dressmaker, an enthralling historical saga that recreates the danger, romance, and sacrifice of an era and brings to life one courageous, passionate American - Mildred Fish Harnack - and her circle of women friends who waged a clandestine battle against Hitler in Nazi Berlin.

One morning while passing through Grand Central Terminal on her way to work, Grace Healey finds an abandoned suitcase tucked beneath a bench. Unable to resist her own curiosity, Grace opens the suitcase, where she discovers a dozen photographs - each of a different woman. In a moment of impulse, Grace takes the photographs and quickly leaves the station. Grace soon learns that the suitcase belonged to a woman named Eleanor Trigg, leader of a network of female secret agents who were deployed out of London during the war.

1942. Hannah Martel has narrowly escaped Nazi Germany after her fiancé was killed in a pogrom. When her ship bound for America is turned away at port, she has nowhere to go but to her cousin Lily, who lives with her family in Brussels. Fearful for her life, Hannah is desperate to get out of occupied Europe. But with no safe way to leave, she must return to the dangerous underground work she thought she had left behind.

When German bombs set London ablaze, BBC radio correspondent Hugh Collingwood reports on the Blitz, eager to boost morale while walking the fine line between truth and censorship. But the Germans are not the only ones Londoners have to fear as a series of murders flame up amid the ashes. The deaths hit close to home for Hugh, and Aleida needs his help to locate her missing son. As they work together, they grow closer and closer, both to each other and the answers they seek. But with bombs falling and continued killings, they may be running out of time.

Elisabetta, Marco, and Sandro grow up as the best of friends despite their differences. Elisabetta is a feisty beauty who dreams of becoming a novelist; Marco the brash and athletic son in a family of professional cyclists; and Sandro a Jewish mathematics prodigy, kind-hearted and thoughtful, the son of a lawyer and a doctor. Their friendship blossoms to love, with both Sandro and Marco hoping to win Elisabetta's heart.

London, 1962: The world is teetering on the brink of nuclear war but life must go on. Celia Duchesne longs for a career, but with no means or qualifications, passes her time working at a dusty bookshop. The day a handsome American enters the shop, she thinks she might have found her way out of the monotony. Just as the excitement of a budding relationship engulfs her, a devastating secret draws her into the murky world of espionage.

France, March 1944. Virginia Hall wasn't like the other young society women back home in Baltimore - she never wanted the debutante ball or silk gloves. Instead, she traded a safe life for adventure in Europe, and when her beloved second home is thrust into the dark days of war, she leaps in headfirst. Once she's recruited as an Allied spy, subverting the Nazis becomes her calling. But even the most cunning agent can be bested, and in wartime trusting the wrong person can prove fatal.

Wealthy, beautiful Naneé was born with a spirit of adventure. For her, learning to fly is freedom. When German tanks roll across the border and into Paris, this woman with an adorable dog and a generous heart joins the resistance. Known as the Postmistress because she delivers information to those in hiding, Naneé uses her charms and skill to house the hunted and deliver them to safety.

In this riveting novel of royal secrets and intrigue, Karen Harper lifts the veil on one of the world’s most fascinating families and how its “secret weapon” of a matriarch maneuvered her way through one of the most dangerous chapters of the century.

German power is rising again, threatening a war that will be even worse than the last one. The English aristocracy turns to an age-old institution to stave off war and strengthen political bonds—marriage. Debutantes flock to Germany, including Viviane Alden. On holiday with her sister during the 1936 Berlin Olympics, Viviane’s true purpose is more clandestine.

Margot and her adoring husband, Jochen, are madly in love. But in Nazi Germany, being in love is the most dangerous act of all. A marriage between Margot, a German woman, and Jochen, a Jewish man, is forbidden under Hitler’s tyrannical rule. Yet when friends cross the street to avoid Margot and her own mother rejects her, she stays loyal to Jochen. When the Gestapo break into their home and steal their belongings, she remains steadfast. And when soldiers arrest Jochen, imprisoning him with countless others, Margot will stop at nothing to save him.

As 1754 is drawing to a close, tensions between the French and the British on Canada’s Acadian shore are reaching a fever pitch. Seamstress Sylvie Galant and her family—French-speaking Acadians wishing to remain neutral—are caught in the middle, their land positioned between two forts flying rival flags. Amid preparations for the celebration of Noël, the talk is of unrest, coming war, and William Blackburn, the British Army Ranger raising havoc across North America’s borderlands.

It’s 1918 in German-occupied Bruges, Belgium. With luck, Evelien will make it to the end of the war and be given what she was promised: a prized painting in exchange for safeguarding her employer’s possessions. Until then, Evelien knows to keep her head down and stay out of trouble. But life never goes to plan, especially in war. A member of the Resistance approaches Evelien: steal a list of names hidden in her employer’s home.

New York socialite Caroline Ferriday has her hands full with her post at the French consulate and a new love on the horizon. But Caroline’s world is forever changed when Hitler’s army invades Poland in September 1939—and then sets its sights on France. An ocean away from Caroline, Kasia Kuzmerick, a Polish teenager, senses her carefree youth disappearing as she is drawn deeper into her role as courier for the underground resistance movement. In a tense atmosphere of watchful eyes and suspecting neighbors, one false move can have dire consequences.

In the rugged Pacific Northwest lies the Olympic National Forest - nearly a million acres of impenetrable darkness and impossible beauty. From deep within this old growth forest, a six-year-old girl appears. Speechless and alone, she offers no clue as to her identity, no hint of her past.