London, 1885. Amelie Hampton is a hopeless romantic, which makes her the perfect columnist to answer lonely heart letters in The Marriage Gazette. When Amelie plays matchmaker with two anonymous lonely hearts, she also decides to secretly observe the couple’s blind date. To her surprise, the man who appears for the rendezvous is Harold Radcliffe - a grieving widower and a member of Amelie’s book club.

At the age of nineteen, Lady Dorothea Rowlandson was practically on the shelf. Had she not suffered her father, the earl’s, untimely death weeks before last year’s season, she would surely by now be a married lady—the established wife of an illustrious peer. With such a regrettable delay, time was ever more of the essence if she wished to secure her own future and that of her sisters.

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.

Wyoming Territory, 1876. US Marshal John “Hawk” Hawking is one of the most respected lawmen in the West, so when a telegram arrives from the small town of Sand Creek warning him of a death threat against him, he immediately begins an investigation. Posing as a farmer, Hawk heads to Sand Creek, a town ruled by a violent and corrupt sheriff. Only one person is trying to stop him―Liesl, the sheriff’s own daughter. When Liesl meets the self-assured and attractive new farmer, John, she hopes he might help her in the fight for justice.

Maxence Étienne believes fiercely in the Revolution and longs for his name to be listed among the heroes bringing liberty to France. It’s been almost two years of non-stop war, but the monarchy has fallen, and he’s beginning to see the changes so many of his countrymen have fought for. With war still raging, Maxence is transferred from Paris to the port city of Nantes, a hotbed of counterrevolutionaries, to help stamp out rebellion against the new republic.