Grand Duchess Olga Romanov comes of age amid a shifting tide for the great dynasties of Europe. But even as unrest simmers in the capital, Olga is content to live within the confines of the sheltered life her parents have built for her and her three sisters: hiding from the world on account of their mother’s ill health, their brother Alexei’s secret affliction, and rising controversy over Father Grigori Rasputin, the priest on whom the tsarina has come to rely.

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.

Paris, 1940 German tanks rumble through the streets of Paris, forcing frightened citizens to flee. But not everyone has the luxury to leave. Camille Lacroix, a chambermaid at the world-famous Hôtel Ritz, must stay to support her family back home in Brittany. Desperate to earn money, Camille also acts as a lady’s maid for longtime guest Vivian Miller, a glamorous American widow—and a Nazi sympathizer. Despite her distrust of the woman, Camille turns to Vivian when her friend Rachel Berman needs help getting out of Paris. It’s then that Camille discovers that Vivian is not what she seems.

Sophie Dix fled Stuttgart with her brother as the Nazi regime gained power in Germany. Now, with her brother gone and her adopted home city of Paris conquered by the Reich, Sophie reluctantly accepts a position restoring damaged art at the Jeu de Paume museum under the supervision of the ERR—a German art commission using the museum as a repository for art they’ve looted from Jewish families.

In Nottingham, England, widow Emma Taylor finds herself in desperate need of a job. She and her beloved daughter Olivia have always managed just fine on their own, but with the legal restrictions prohibiting widows with children from most employment opportunities, she’s left with only one option: persuading the manageress at Boots’ Booklover’s Library to take a chance on her with a job.

In 1927, eight-year-old Clara Harrington’s magical childhood shatters when her mother, renowned author, Bronwyn Newcastle Fordham, disappears off the coast of South Carolina. Bronwyn stunned the world with a book written in an invented language that became a national sensation when she was just twelve years old. Her departure leaves behind not only a devoted husband and heartbroken daughter, but also the hope of ever translating the sequel to her landmark work. As the headlines focus on the missing author, Clara yearns for something far deeper and more insatiable: her beautiful mother.

As German bombs fall over London in 1940, working-class parents Millie and Reginald Thompson make an impossible choice: they decide to send their eleven-year-old daughter, Beatrix, to America. There, she’ll live with another family for the duration of the war, where they hope she’ll stay safe. Scared and angry, feeling lonely and displaced, Bea arrives in Boston to meet the Gregorys. Mr. and Mrs. G, and their sons William and Gerald, fold Bea seamlessly into their world. She becomes part of this family, learning their ways and their stories, adjusting to their affluent lifestyle.

Zippi Spitzer and David Wisnia were captivated by each other from the moment they first exchanged glances across the work floor. It was the beginning of a love story that could have happened anywhere. Except for one difference: this romance was unfolding in history’s most notorious death camp, between two young prisoners whose budding intimacy risked dooming them if they were caught.

Sixteen-year-old Alice is spending the summer in Paris, but she isn't there for pastries and walks along the Seine. When her grandmother passed away two months ago, she left Alice an apartment in France that no one knew existed. An apartment that has been locked for more than 70 years. Alice is determined to find out why the apartment was abandoned and why her grandmother never once mentioned the family she left behind when she moved to America after World War II. With the help of Paul, a charming Parisian student, she sets out to uncover the truth.

In the quiet town of Houghton, Michigan, sixteen-year-old Nancy Harkness discovers a passion that ignites her heart in ways she never expected. The arrival of barnstormer pilots brings more than just the thrill of their daring stunts; it brings the promise of adventure. Nancy vows she will be a pilot someday. Years later, as the dark clouds of World War II gather on the horizon, Nancy’s dreams take a new and daring turn. With unwavering determination, she envisions a squadron of female pilots. Yet, her path is far from clear.

February, 1946. World War Two is over, but the recovery from the most intimate of its horrors has only just begun for Annaliese Lange, a German ballerina desperate to escape her past, and Simone Deveraux, the wronged daughter of a French Résistance spy. Now the two women are joining hundreds of other European war brides aboard the renowned RMS Queen Mary to cross the Atlantic and be reunited with their American husbands. Their new lives in the United States brightly beckon until their tightly held secrets are laid bare in their shared stateroom.

Between the World Wars, the six Mitford sisters—each more beautiful, brilliant, and eccentric than the next—dominate the English political, literary, and social scenes. Though they've weathered scandals before, the family falls into disarray when Diana divorces her wealthy husband to marry a fascist leader and Unity follows her sister's lead all the way to Munich, inciting rumors that she's become Hitler's mistress.

1940 - Stasia always found comfort in the idyllic French countryside where she spent her childhood summers, roaming the gardens of an old chateau and finding inspiration for fairy tales full of bravery and adventure. But these days are much darker, and with Nazis storming across Europe, she soon finds herself one of the most hunted agents of the Resistance. The only safe haven she can think of is Chateau de Montissaire. But she’s about to discover that it just may be the center of her biggest mission yet.

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.

Champagne, 1939. Gabrielle Leblanc Dupree is taking her family's future into her hands. While she should be preparing for a lavish party to celebrate two centuries of champagne making, she secretly hides Chateau Fouché-Leblanc's most precious vintages behind a fake wall in the cellar in preparation for the looming war. But when she joins the resistance, the coveted champagne isn't the most dangerous secret her cellar must conceal.

Grand Duchess Olga Romanov comes of age amid a shifting tide for the great dynasties of Europe. But even as unrest simmers in the capital, Olga is content to live within the confines of the sheltered life her parents have built for her and her three sisters: hiding from the world on account of their mother’s ill health, their brother Alexei’s secret affliction, and rising controversy over Father Grigori Rasputin, the priest on whom the tsarina has come to rely.

Sophie Dix fled Stuttgart with her brother as the Nazi regime gained power in Germany. Now, with her brother gone and her adopted home city of Paris conquered by the Reich, Sophie reluctantly accepts a position restoring damaged art at the Jeu de Paume museum under the supervision of the ERR—a German art commission using the museum as a repository for art they’ve looted from Jewish families.

In the summer of 1925, Thelma Morgan arrives at the Paris Ritz still stinging from the heartache and humiliation of her failed marriage. Her twin sister, Gloria, newly and blissfully wedded to Reginald Vanderbilt and with a baby in tow, has invited her to spend the summer - and though romance is the last thing on Thelma’s mind, she can’t deny that Reggie’s friend Duke Furness is as charming and dapper as he is keen to win her affection.

Jackie Kennedy is beautiful, sophisticated, and contemplating leaving her ambitious young senator husband. When she's offered a holiday on the luxurious yacht owned by billionaire Ari Onassis, she says yes...to a meeting that will ultimately change her life. Maria Callas is at the height of her operatic career and widely considered to be the finest soprano in the world. And then she's introduced to Aristotle Onassis, the world's richest man and her fellow Greek. Little by little, Maria's and Jackie's lives began to overlap, until everything they know about the world changes on a dime.

In 1950s Quebec, French and English tolerate each other with precarious civility - much like Maggie Hughes' parents. Maggie's English-speaking father has ambitions for his daughter that don't include marriage to the poor French boy on the next farm over. But Maggie's heart is captured by Gabriel Phénix. When she becomes pregnant at 15, her parents force her to give baby Elodie up for adoption and get her life "back on track".

Miranda Brooks grew up in the stacks of her eccentric uncle Billy’s bookstore, solving the inventive scavenger hunts he created just for her. But on Miranda’s 12th birthday, Billy has a mysterious falling-out with her mother and suddenly disappears from Miranda’s life. She doesn’t hear about him again until 16 years later when she receives unexpected news: Billy has died and left her Prospero Books, which is teetering on bankruptcy, and one final scavenger hunt.

When Rivkah Milmanovitch arrives at Ellis Island, her husband is not waiting for her as promised. Alone and pregnant, she makes her way to the Lower East Side tenement of an old friend. Lottie Aarons, whose husband went out for a newspaper and never returned, takes Rivkah in and they work side-by-side in dispiriting sweatshops. Rivkah gives birth to a daughter, Mimi, determined that her child will have a better life in America.

Librarian Martha Storm has always found it easier to connect with books than people—though not for lack of trying. She keeps careful lists of how to help others in her superhero-themed notebook. And yet, sometimes it feels like she’s invisible. All of that changes when a book of fairy tales arrives on her doorstep. Inside, Martha finds a dedication written by her best friend—her grandmother Zelda—who died under mysterious circumstances years ago. When Martha discovers a clue within the book that her grandmother may still be alive, she becomes determined to discover the truth.

Paris, 1939: The Nazis think Éliane can't understand German. They’re wrong. They think she’s merely cataloging art in a Louvre museum and unaware they’re stealing national treasures for their private collections. They have no idea she’s carefully decoding their notes and smuggling information to the Resistance. But Éliane is playing a dangerous game. Does she dare trust the man she once loved with her secrets, or will he only betray her once again?

A woman falls to her death from a London bank’s twenty-fifth-floor roof terrace. You're arrested for her murder. You tell the police that you had only met the victim the previous night at your office party. She was threatening to jump down from the roof, but you had talked her down. You've got nothing to do with this tragedy. You're clearly being framed.

Somewhere in the Pacific, 1943. Kate Campbell is a nurse who bravely flies back and forth from the front to rescue wounded soldiers, amid long days, harsh conditions and often dangerous weather. Driven by a deep personal need to help in the war effort, she is conflicted when an injury results in her reassignment to the relative comfort of the English countryside. Love has never been part of her plan, but despite herself, she falls for an officer with three bullet wounds, startling blue eyes and a wicked sense of humor.

1740s France and England—the age of hedonism and enlightenment. Antonia must flee the Court of Versailles and the predatory schemes of the Comte de Salvan. She orchestrates an escape with the unwitting assistance of the all-powerful Duke of Roxton, a man she has been warned against as too dangerous for her to know.

When Jackie is twenty-one, she meets the charismatic congressman Jack Kennedy at a dinner party in Georgetown. She is dreaming of France, of a life of freedom and adventure. She has won an internship at Vogue, and she thinks Kennedy is not her kind of adventure: “Too American. Too good-looking. Too boy.” And yet there is his intelligence, his humor and drive, and the chemistry between them. He pursues her, then disappears, then pursues her again in a pattern of intimacy and distance.

French countryside, Present Day: Blythe Bricard is the daughter of famous fashion muses but that doesn't mean she wants to be one. She turned her back on that world, and her dreams, years ago. Fate, however, has a different plan, and Blythe will discover there is more to her iconic mother and grandmother than she ever knew.

Thirty-eight year old Cassandra is lost, alone, and grieving. Her much loved grandmother, Nell, has just died and Cassandra, her life already shaken by a tragic accident 10 years ago, feels like she has lost everything known and dear to her.