From New York Times bestselling author Jennifer Chiaverini, a bold, revelatory novel about one of the great untold stories of World War I—the women of the U.S. Army Signal Corps, who broke down gender barriers in the military and battled a pandemic as they helped lead the Allies to victory.

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.

Early in the Great War, men left Britain’s factories in droves to enlist. Struggling to keep up production, arsenals hired women to build the weapons the military urgently needed. “Be the Girl Behind the Man Behind the Gun,” the recruitment posters beckoned. Thousands of women—cooks, maids, shopgirls, and housewives—answered their nation’s call. These “munitionettes” worked grueling shifts often seven days a week, handling TNT and other explosives with little protective gear.

In May 1875, Elizabeth Todd Edwards reels from news that her younger sister Mary, former first lady and widow of President Abraham Lincoln, has attempted suicide. Mary’s shocking act followed legal proceedings arranged by her eldest and only surviving son that declared her legally insane. Although they have long been estranged, Elizabeth knows Mary’s tenuous mental health has deteriorated through decades of trauma and loss. Yet is her suicide attempt truly the impulse of a deranged mind, or the desperate act of a sane woman terrified to be committed to an asylum?

On an otherwise ordinary morning in 1943, Helene Hannemann is preparing her five children for the day when the German police arrive at her home. Helene's worst fears come true when the police, under strict orders from the SS, demand that her children and husband, all of Romani heritage, be taken into custody. Though Helene is German and safe from the forces invading her home, she refuses to leave her family - sealing her fate in a way she never could have imagined.

Yorkshire, 1943. Lily Baines, a bright young debutante increasingly ground down by an endless war, has traded in her white gloves for a set of headphones. It’s her job to intercept enemy naval communications and send them to Bletchley Park for decryption. One night, she picks up a transmission that isn’t code at all—it’s a cry for help.

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.

Sophie was born to be a rebel, raised by parents who challenged the brutal Nazi regime. Determined to follow in their footsteps, she leaves for university, defying Hitler’s command for women to stay at home. She knows instantly that she isn’t alone, that there are more courageous souls like her who will fight against evil. But it is only a matter of time before the Gestapo closes in.... And when Sophie is imprisoned in an interrogation room, staring a Nazi officer in the eye, will she take their secrets to her grave?

Rome, 1943. With the fall of Italy's Fascist government and the Nazi regime occupying the streets of Rome, British ballerina Julia Bradbury is stranded and forced to take refuge at a hospital on Tiber Island. But when she learns of a deadly sickness sweeping through the quarantine wards--a fake disease known only as Syndrome K--she is drawn into one of the greatest cons in history. Alongside hospital staff, friars of the adjoining church, and two Allied medics, Julia risks everything to rescue Jewish Italians from the deadly clutches of the Holocaust.

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.

As the dutiful daughter of a high-ranking Nazi officer, Hetty Heinrich is keen to play her part in the glorious new Thousand Year Reich. But she never imagines that all she believes and knows about her world will come into stark conflict when she encounters Walter, a Jewish friend from the past, who stirs dangerous feelings in her. Confused and conflicted, Hetty doesn’t know whom she can trust and where she can turn to, especially when she discovers that someone has been watching her.

All her life, Zofia has found comfort in two things during times of hardship: books and her best friend, Janina. But no one could have imagined the horrors of the Nazi occupation in Warsaw. As the bombs rain down and Hitler’s forces loot and destroy the city, Zofia finds that now books are also in need of saving. With the death count rising and persecution intensifying, Zofia jumps to action to save her friend and salvage whatever books she can from the wreckage, hiding them away, and even starting a clandestine book club.

It is the autumn of 1943, and life is becoming increasingly perilous for Italian Jews like the Mazin family. With Nazi Germany now occupying most of her beloved homeland, and the threat of imprisonment and deportation growing ever more certain, Antonina Mazin has but one hope to survive - to leave Venice and her beloved parents and hide in the countryside with a man she has only just met.

Paris, 1944: The war is nearly over, but for members of the Resistance in occupied France, it is more dangerous than ever before. Twenty-five-year-old Gabby Foucher loathes the Nazis, though as the concierge of 10 rue Royale, she does her best to avoid conflict - unlike her bolder sister Yvette, who finds trouble at every turn.

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.