In August of 1939, as Britain watches the headlines in fear of another devastating war with Germany, three childhood companions must choose between friendship and country. Erstwhile, socialite Nora is determined to find her place in the Home Office’s Air Raid Precautions Department, matchmaker Hazel tries to mask two closely guarded secrets with irrepressible optimism, and German expat Marie worries that she and her family might face imprisonment in an internment camp if war is declared. 

Present day: Emma Lovett, who has dedicated her career to breathing new life into long-neglected gardens, has just been given the opportunity of a lifetime: to restore the gardens of the famed Highbury House estate, designed in 1907 by her hero Venetia Smith. But as Emma dives deeper into the gardens’ past, she begins to uncover secrets that have long lain hidden.

When it’s announced that 1958 will be the last year debutantes are to be presented at court, thousands of eager mothers and hopeful daughters flood the palace with letters seeking the year’s most coveted invitation: a chance for their daughters to curtsey to the young Queen Elizabeth and officially come out into society. In an effort to appease her traditional mother, aspiring university student Lily Nichols agrees to become a debutante and do the Season, a glittering and grueling string of countless balls and cocktail parties. In doing so, she befriends two very different women.

As England prepares to fight the Nazis, three very different women answer the call to mysterious country estate Bletchley Park, where the best minds in Britain train to break German military codes. Vivacious debutante Osla is the girl who has everything - beauty, wealth, and the dashing Prince Philip of Greece sending her roses - but she burns to prove herself as more than a society girl, and puts her fluent German to use as a translator of decoded enemy secrets.  

Anne Gallagher grew up enchanted by her grandfather’s stories of Ireland. Heartbroken at his death, she travels to his childhood home to spread his ashes. There, overcome with memories of the man she adored and consumed by a history she never knew, she is pulled into another time. The Ireland of 1921, teetering on the edge of war, is a dangerous place in which to awaken. But there Anne finds herself, hurt, disoriented, and under the care of Dr. Thomas Smith, guardian to a young boy who is oddly familiar. 

Germany, 1939. A tumbledown farmhouse, on the outskirts of a close-knit village in the heart of the rolling hills of Bavaria. A once happy family home torn apart by Nazi rule. And one young girl who refuses to give up on what she believes in...London, 2018: When 94-year-old Imogen receives a letter addressed to her in neat, unfamiliar handwriting, she notices the postmark is stamped from Germany - and it sends shivers down her spine.... 

As the German Luftwaffe begin a terrifying bombing campaign that will come to be known as the Blitz, thousands are evacuated to safety. But Lizzie Mackenzie finds herself heading toward London. She knows she must help in the war effort. But she has another reason for leaving the security of her Scottish village: the illegitimate child she gave up for adoption nearly five years before is somewhere in the city. And - as the bombs rain down - she will stop at nothing to find her and make sure her little girl is safe. 

1941. Audrey Coltrane has always wanted to fly. It's why she implored her father to teach her at the little airfield back home in Texas. It’s why she signed up to train military pilots in Hawaii when the war in Europe began. And it’s why she insists she is not interested in any dream-derailing romantic involvements, even with the disarming Lieutenant James Hart, who fast becomes a friend as treasured as the women with whom she flies. Then one fateful day, she gets caught in the air over Pearl Harbor just as the bombs begin to fall, and suddenly, nowhere feels safe.

It is 1936, and Nancy Wake is an intrepid Australian expat living in Paris who has bluffed her way into a reporting job for Hearst newspaper when she meets the wealthy French industrialist Henri Fiocca. No sooner does Henri sweep Nancy off her feet and convince her to become Mrs. Fiocca than the Germans invade France and she takes yet another name: a code name. As Lucienne Carlier, Nancy smuggles people and documents across the border and earns a new nickname from the Gestapo for her remarkable ability to evade capture: The White Mouse.

In the chaotic aftermath of World War II, American college girl Charlie St. Clair is pregnant, unmarried, and on the verge of being thrown out of her very proper family. She's also nursing a desperate hope that her beloved cousin Rose, who disappeared in Nazi-occupied France during the war, might still be alive.

Bold and fearless, Nina Markova always dreamed of flying. When the Nazis attack the Soviet Union, she risks everything to join the legendary Night Witches, an all-female night bomber regiment wreaking havoc on the invading Germans. When she is stranded behind enemy lines, Nina becomes the prey of a lethal Nazi murderess known as the Huntress, and only Nina's bravery and cunning will keep her alive. 

In the summer of 1940, ambitious young American journalist Ruby Sutton gets her big break: the chance to report on the European war as a staff writer for Picture Weekly newsmagazine in London. She jumps at the chance, for it's an opportunity not only to prove herself, but also to start fresh in a city and country that know nothing of her humble origins. But life in besieged Britain tests Ruby in ways she never imagined.

Present day, London: When Sophie discovers a photograph of her great aunt Vivi from World War II, it throws her into a world of confusion. Because, as she learns about this secret relative, she quickly realizes that the photograph doesn’t fit with her family’s story. It shows Vivi leaving an address associated with a spy network in London - a place she had no reason to be - and it is dated right before she disappeared. 

Alice Wright marries handsome American Bennett Van Cleve hoping to escape her stifling life in England. But small-town Kentucky quickly proves equally claustrophobic, especially living alongside her overbearing father-in-law. So, when a call goes out for a team of women to deliver books as part of Eleanor Roosevelt’s new traveling library, Alice signs on enthusiastically. The leader, and soon Alice's greatest ally, is Margery, a smart-talking, self-sufficient woman who's never asked a man's permission for anything.

In this gripping WWII time-slip novel from the author whose books have been called “propulsive” and a “must-read” (Publishers Weekly), Grace Tonquin is an American Quaker who works tirelessly in Vichy France to rescue Jewish children from the Nazis. After crossing the treacherous Pyrénées, Grace returns home to Oregon with a brother and sister whose parents were lost during the war. Though Grace and her husband love Élias and Marguerite as their own, echoes of Grace’s past and trauma from the Holocaust tear the Tonquin family apart.