Head of the Denver Pinkerton office Archie Gordon has been tasked with hiring female agents. The problem? They need to be trained by existing agents while solving cases. Alone and unchaperoned. In 1871. The solution? Have each pair marry temporarily, for the duration of the case. If Archie can convince his reluctant agents and the even more reluctant women to agree, that is.

Julia Cummings has long been acquainted with loss - her mother, her brother, her sister, her friend, all gone too soon. But the loss that pushed her grief to the limit as a young girl was that of her best friend, Lucas Jonquil, who abandoned her without looking back. Now, eight years later, Lucas has returned to Lampton Park, and Julia has steeled herself - she will never forgive the man who broke her heart.

Gregory Dinard, a young and inexperienced duke, finds himself in need of a companion to help him navigate the intricacies of his new role. Uncertain of his abilities and unwilling to take a chance at love, he looks for a marriage of mutual benefit rather than a match of mutual affection.

A third son to an earl, Adam Gillensford knows his only hope of an inheritance is through his great uncle. But when the Will is read, Adam learns most of the wealth has been left to a complete stranger, and a seamstress at that. If he hopes to salvage any kind of funds for himself, he has two choices: adhere to his late uncle’s wishes and assist the new heiress in finding her way, or sabotage her so the courts will find her unfit to inherit. Deciding his course would be easier if the heiress wasn’t so enchanting.

When a cryptic invitation brings Giulia Pepper to her uncle's remote estate in Devon, she arrives in dire need of a benefactor, only to discover that her uncle never sent her any invitation—nor does he want her there. Forced into a corner, Giulia must contrive a way to convince him to allow her to remain, just long enough to figure out where to go next.

Lieutenant John Holdsworth, a valiant veteran of the Battle of Waterloo, carries not only the physical wounds of war but the haunting memories that threaten to shackle his heart forever. Now, as the steward of a sprawling Scottish estate, he finds solace in his work in the solitude of the Highlands. Catriona Craig is the enchanting adopted daughter of Lord Craig. Her world revolves around the compassionate act of healing. Amidst the winds and fragrant meadows of the estate, she discovers her purpose, nursing not only the ailments of the body but also the wounded spirits that cross her path.

Melody Foster has been granted every luxury available save one: the ability to love whom she chooses. When her father reveals that she is to marry a wild Scot she’s never met, Melody defies him and declares she will never marry without affection. Her choice to marry Richard, a footman in her father’s household, prompts her family to disown her, and she goes to London to risk everything for love. But she is blindsided. Without a penny to her name, her love is worthless to Richard.

Lady Verity wants nothing more than to provide a safe home for her sister, whose simple-mindedness is often misunderstood. When Lady Verity's father and husband both die, passing their house to a stranger, she vows to do whatever she must to ensure her sister's safety. The new earl has a reputation for being a rake, and Lady Verity is prepared to make him an offer he cannot refuse.

Rose Portman, determined spinster, has a bit of a predicament. Her great aunt has challenged her to get married before Twelfth Night and promised that, if she does, Rose will inherit the perfect country cottage with the funds to maintain it. Rose has always wanted to get away from London and Society, and this could be her chance! But the catch is that Rose has to attend a holiday house party in York and find a husband among the guests. Worst of all… she must marry for love.

Grace Sinclair has been callously cast out of her home. And though taken in as an orphaned child by the vicar and his wife, her unsurpassed beauty makes it impossible for her to remain in the vicar’s household - with two daughters of their own about to enter Society, the vicar and his wife see Grace as nothing but competition. Thankfully, Grace’s estranged Aunt Bell has agreed to take her in to her home in London. But Grace soon learns her situation has just gotten much worse.