England 1923 and the Great War still casts a dark shadow over the lives of ordinary people. Grieving widow, Helen Morrow and the wounded and reclusive Paul, are haunted not only by the horrors of the trenches but ghosts from another time and another conflict. The desperate voice of a young woman reaches out to them from the pages of a coded diary and Paul and Helen are bound together in their search for answers, not only to the old mystery but also the circumstances surrounding the death of Helen’s husband at Passchandaele in 1917.

Singapore, 1910 - Desperate for a fresh start, Harriet Gordon finds herself living with her brother, a reverend and headmaster of a school for boys, in Singapore at the height of colonial rule. Hoping to gain some financial independence, she advertises her services as a personal secretary. It is unfortunate that she should discover her first client, Sir Oswald Newbold - explorer, mine magnate, and president of the exclusive Explorers and Geographers Club - dead with a knife in his throat.

A reluctant ex-spy with demons of her own, Elinor finds herself facing down one of the most dangerous organized crime gangs in London, ultimately exposing corruption from Scotland Yard to the highest levels of government. The private, quiet “Miss White" as Elinor is known, lives in a village in rural Kent, England, and to her fellow villagers seems something of an enigma. Well she might, as Elinor occupies a "grace and favor" property, a rare privilege offered to faithful servants of the Crown for services to the nation.

Thorne Manor has always been haunted...and it has always haunted Bronwyn Dale. As a young girl, Bronwyn could pass through a time slip in her great-aunt's house, where she visited William Thorne, a boy her own age, born two centuries earlier. After a family tragedy, the house was shuttered and Bronwyn was convinced that William existed only in her imagination. Now, 20 years later Bronwyn inherits Thorne Manor. And when she returns, William is waiting.

Lady Emily Hardcastle is an eccentric widow with a secret past. Florence Armstrong, her maid and confidante, is an expert in martial arts. The year is 1908 and they've just moved from London to the country, hoping for a quiet life. But it is not long before Lady Hardcastle is forced out of her self-imposed retirement. There's a dead body in the woods, and the police are on the wrong scent. Lady Hardcastle makes some enquiries of her own, and it seems she knows a surprising amount about crime investigation...

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.

Australia, 1906: Orphan Jane Piper is nine years old when philanthropist siblings Michael and Elizabeth Quinn take her into their home to further her schooling. The Quinns are no strangers to hardship. Having arrived in Australia as penniless immigrants, they now care for others as lost as they once were. Despite Jane’s mysterious past, her remarkable aptitude for mathematics takes her far over the next seven years, and her relationship with Elizabeth and Michael flourishes as she plays an increasingly prominent part in their business.

After a whirlwind romance, London teashop waitress Fleur Richards can’t wait for her new husband, Hugh, to return from the Great War. But when word of his death arrives on Armistice Day, Fleur learns he has left her a sizable family fortune. Refusing to accept the inheritance, she heads to his beloved home country of Australia in search of the relatives who deserve it more.

Thea Knight loves a spot of mischief. She especially loves her current mischief: masquerading as her sister, while finalizing her scheme to expose the dastardly knaves whose lies ruined her life. Then big, bad-tempered Lord Luxborough upends her game by maneuvering her into marriage. But it's her sister’s name on the license, so the marriage won’t be valid. Thea’s idea? Keep pretending to be her sister until she can run away.

Cassandra Hale grew up knowing little about her parentage, and she had made peace with the fact that she never would. But her world shifts when a shocking deathbed confession reveals a two-year-old letter from Mr. Clark, the master of Briarton Park, with hints to her family's identity. Stung by betrayal, Cassandra travels to the village of Anston only to learn Mr. Clark has since passed away.

Growing up in New York City in the 1910s, Luella and Effie Tildon realize that even as wealthy young women, their freedoms come with limits. But when the sisters discover a shocking secret about their father, Luella, the brazen elder sister, becomes emboldened to do as she pleases. Her rebellion comes with consequences, and one morning Luella is mysteriously gone.

London, 1935. Ruby is always hungry, but she will go without if it means her young brothers can eat. 1930s Bermondsey might be called the larder of London, with its pie, pickle and jam factories, but for the poor working classes, starvation is often only a heartbeat away. When Ruby's neighbour suggests she ought to go to the Methodist Mission for free food, Ruby knows her father will be furious, but she has no other option.

It's April 1861, and the Union Army's Medical Department is a disaster, completely unprepared for the magnitude of war. A small group of New York City women, including 28-year-old Charlotte Waverly, decide to do something about it, and end up changing the course of the war, despite criticism, ridicule, and social ostracism. Charlotte leaves a life of privilege, wealth, and confining expectations to be one of the first female nurses for the Union Army. She quickly discovers that she's fighting more than just the Rebellion by working in the hospitals.

Major Matthew Southam returns from India, hoping to put the trauma of war behind him and forget his past. Instead, he finds a derelict estate and a family who wish he'd died abroad. Charlotte MacKinnon married without love to avoid her father's unpleasant choice of husband. Now a widow with a young son, she lives in a small Cotswold village with only the money she earns by her writing. Matthew is haunted by his past, and Charlotte is fearful of her father's renewed meddling in her future. After a disastrous first meeting, can they help each other find happiness?

The war might be over, but their battle has just begun. After losing her husband and only child to the ravages of the Civil War, 25-year-old Portia McAllister is drowning in grief. When she sees an ad for a live-in tutor in another town, she leaves everything behind in hopes of making a fresh start. But as a Confederate widow in a Union household, she is met with resentment from her new charge and her employer, war veteran Beau Stanford.