After years of escaping etiquette lessons in favor of the stables, Christine Devon's grand debut in London is only weeks away, though her deportment lacks the sophisticated polish she needs to achieve her goals of a lofty marriage. Desperate to take her place in society, she needs someone to instruct her in proper behavior. Thomas Gilbert, newly returned from Italy, is ready to begin his dream of founding a horse farm. But during his time away, the estate's finances have dwindled to almost nothing. A chance meeting between them may solve both their problems.

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.

Silas Riley, Earl of Inglewood, is known among his peers in Parliament as the man made of stone. As a wealthy peer, there are few he trusts with his friendship. He guards his heart and his honor with vigilance, and when an accident nearly takes his life, he’s faced with a situation which threatens his standing in society.

Much to her father's dismay, Miss Amelia Buxton aspires to become a spinster, just like her eccentric aunt. Growing up with parents who married for every reason but love, she has never seen a joyful marriage. When Amelia requests a summer trip to the legendary waters of Brighton, her father allows her the excursion, but with one requirement: She must return engaged, or agree to the proposal of the man of his choosing.

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.

After five years of tracking and capturing spies on English soil, Philip Jonquil, Earl of Lampton, is in pursuit of his last quarry. But at a traveler’s inn, he encounters an unexpected and far more maddening foe: Sorrel Kendrick, a young lady who is strikingly pretty, shockingly outspoken, and entirely unimpressed with him. Indeed, Sorrel cannot believe the nerve of this gentleman, who rudely accuses her of theft and insults her feminine dignity. Doubly annoyed when they both end up at a party hosted by mutual friends, Philip and Sorrel privately declare war on one another.

Katherine Cartwright knows through bitter experience that true love is fiction and trust should not be bestowed easily. Now, after two unsuccessful London Seasons, her atrocious father has decided to marry her off to the highest bidder to pay for his gambling debts, ridding himself of the daughter he never wanted. A profitable deal is struck, and Kate is packed off to the home of her betrothed, an earl she has never met. Or so she believes.

When faced with an unwanted marriage, Alice Rosemeyer accepts an invitation to the estate of Larkhall. Determined to earn her future security without a husband, she begins operating as the anonymous Ace of Hearts, writing letters and offering advice on behalf of the men eager to secure a match at the close of the London season. If she can manage to keep her identity secret, her reputation intact, and avoid the arrogant house guest, Mr. Thomas Herring, she might just call herself successful.

Miss Amelia Stalwood may live in London at her absent guardian's townhouse, but she's never actually met any nobility; instead of aristocrats, her closest friends are servants. Quite by happenstance, she's introduced to the Hawthorne family and their close family friend, Anthony, the reformed Marquis of Raebourne. They welcome her into their world, but just as she's beginning to gain some confidence and even suspect that she may have caught Anthony's eye, she's blindsided by an unexpected twist in her situation accompanied by nasty rumors.

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.

When Felicity Thurston is caught alone with a man at a ball, she must marry him to avoid a ruined reputation. But what she doesn't know is that he's the brother of the man she loves.

In the eyes of London Society, Gillian Phelps is suitable enough. Though the ton whispers about her change of residence, any speculation remains just that: ballroom gossip. No one—not even the other Huntresses, the group of ladies she calls her dearest friends—knows that she is harboring a devastating family secret. Gillian has become adept at hiding the reality of her circumstances, but the close quarters of a house party will test her ability to conceal the crushing truth. And with so many people to deceive, the late arrival of another guest is a most unwelcome surprise.

Miss Gwendolyn Brinley accepted a temporary paid companion position for the Newport summer season, believing it would be a lark to spend the summer in America's most exclusive town. She suddenly finds her summer turning anything but amusing when her employer expects her to take over responsibilities as an assistant matchmaker. Tasked with the daunting prospect of attaining advantageous matches for her clients, Gwendolyn soon finds herself in the company of Mr. Walter Townsend, the catch of the Season, but a gentleman Gwendolyn finds beyond annoying.

Lucas Berkeley has a secret—one he cannot risk anyone discovering. After all, a future marquess belongs in drawing rooms, not underground boxing circles. Yet with a painful past and a need to control every aspect of his life, it is his only outlet. And when his brother begins to court the one woman who could ruin everything, Lucas needs the secret diversion more than ever.

Louisa Cox is tired of fortune hunters pursuing her dowry. So when Lady Kellen offers to help her find an eligible suitor, Louisa accepts and makes a list of what she wants in a husband. The man selected is barrister Paul Sheldon. He has one thing in his favor: he is unaware of her fortune. What Louisa did not anticipate was his curious behavior—or being so attracted to him. When Paul catches wind of the matchmaking organization his mother and her friends are establishing, he pities the fellow who will be caught in their scheme—until he realizes he is to be their first victim.