When their father's death leaves them impoverished, Sarah Summers and her genteel sisters fear they will be forced to sell the house and separate to earn livelihoods as governesses or companions. Determined to stay together, Sarah convinces them to open their seaside home to guests to make ends meet and provide for their ailing mother. Instead of the elderly invalids they expect to receive, however, they find themselves hosting eligible gentlemen. Sarah is soon torn between a growing attraction to a mysterious Scottish widower and duty to her family.

When Miss Rebecca Lane returns to her home village after a few years away, her brother begs for a favor: Go to nearby Swanford Abbey and deliver his manuscript to an author staying there who could help him get published. Feeling responsible for her brother's desperate state, she reluctantly agrees.

Richard Brockwell, the younger son of Ivy Hill's most prominent family, hasn't been home for Christmas in years. He prefers to live in the London townhouse, far away from Brockwell Court, the old family secret that haunts him, and the shadows of his past mistakes. But then his mother threatens to stop funding his carefree life - unless he comes home for Christmas. Out of options, he sets out for Ivy Hill, planning to be back on a coach bound for London and his unencumbered bachelor life as soon as the festivities are over.

Left with an estate on the brink of bankruptcy after their father's death, Lady Marigold Fairfax and her brother open a private investigation firm marketed to the elite . . . to spy on the elite. Dubbed The Imposters, Ltd., their anonymous group soon becomes the go-to for the crème of society when they want answers delivered surreptitiously. But the many secrets Marigold learns about her peers pale in comparison to her shock when she and her brother are hired to investigate her best friend's father as a potential traitor.

An arranged marriage was never what Callum Darrington, future Duke of Edinbane, imagined for himself. But with the wellbeing of his uncle’s family hanging in the balance, Callum strikes a bargain with his father and reluctantly agrees to tie himself to a stranger. The reality of the lovely Lady Katherine is more than he could have hoped for, and their wedding heralds a bright new future for the couple — until Callum discovers his father deliberately deceived him. Callum lashes out, setting in motion heartbreak not even he could have foreseen.

Since her police-officer husband Eric's mysterious murder, Carly Harris has been struggling to support herself and their infant son. Her career as an antique dealer isn't sustainable, nor is her dream of becoming a novelist. So, when her grandmother proposes she and her two sisters restore the family's large Beaufort home and turn it into a bed-and-breakfast, she immediately gets to work clearing out the house. In the process, she uncovers a family secret that Eric kept hidden. And an heirloom that the wrong person wouldn't hesitate to kill for.

For Hudson, the newly titled Viscount Stildon, moving to England from India where he was born and raised was already an arduous enough endeavor. When he learns the fate of the racing empire he inherited along with his title depends upon him getting in the good graces of another stable owner, he's even more at a loss. The stable at the neighboring estate has been Miss Bianca Snowley's refuge for years, and when a strange man appears to be stealing the horses, she jumps to their protection without a second thought.

In 1715, Lady Blythe Hedley's father is declared an enemy of the British crown because of his Jacobite sympathies, forcing her to flee her home in northern England. Secreted to the tower of Wedderburn Castle in Scotland, Lady Blythe awaits who will ultimately be crowned king. But in a house with seven sons and numerous servants, her presence soon becomes known.

Joan Sample is not living the life she expected. Now a widow and an empty-nester, she has become by her own admission something of a recluse. But after another birthday spent alone, she is finally inclined to listen to her sister, who has been begging Joan to reengage with the world. With Emmie’s support, Joan gathers the courage to take some long-awaited steps: hiring someone to tame her overgrown garden, joining a grief support group, and even renting out a room to a local college student. Before long Joan is starting to feel a little like herself again.

Elizabeth Black is the headmistress of a girls' school in 1830s Victorian London. She is also a well-respected author of stories written both for and about the upper-class ladies of Victorian society. But by night, she writes very different kinds of stories - the Penny Dreadfuls that are all the rage among the working-class men. Under the pseudonym Charles King, Elizabeth has written about dashing heroes fighting supernatural threats, intelligent detectives solving grisly murders, and dangerous outlaws romancing helpless women.