Juliet Graham fervently counts the days until her 21st birthday, when she can claim the inheritance that will grant her the freedom she has always craved and the guardianship of her younger brother. When forced to accompany the family to a house party at Shaldorn Castle, Juliet’s only objective is to keep to herself. That is, until a chance encounter with a boorish stranger stirs up an unexpected whirlwind of emotions in her. Thrown off-balance, Juliet does the unthinkable: loses her temper and insults the man - who turns out to be her unwilling host, the Duke of Halstead.

Lady Charlotte Darrington’s path in life is clearly laid out before her: she will select a suitable husband, marry, and one day inherit her father’s Scottish dukedom. But a growing restlessness has her desperate for a bit of freedom before her all-too-certain future closes in. When the opportunity to travel to America arises, Charlotte leaps at the chance and soon finds herself across the Atlantic in Pittsburgh, Pennsylvania. Her American hosts and their friends couldn’t be more welcoming—all except one. The insufferable Dr. Galloway captures her eye—and her ire.

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.

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.

When their elderly guardian dies, Faith Whitford is determined to set up house in Bath and look for respectable country gentlemen for her four sisters. She has no ambitions for mingling with the ton. What she did not expect was a new guardian, in the form of a London Beau to be appointed over them, nor that he would take any interest in their care.