Lady Miranda Hawthorne acts every inch the lady, but inside she longs to be bold and carefree. Entering her fourth Season and approaching spinsterhood in the eyes of society, she pours her innermost feelings out not in a diary but in letters to her brother's old school friend, a duke - with no intention of ever sending these private thoughts to a man she's heard stories about but never met.

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.

Cassandra Hale grew up knowing little about her parentage, and she had made peace with the fact that she never would. But her world shifts when a shocking deathbed confession reveals a two-year-old letter from Mr. Clark, the master of Briarton Park, with hints to her family’s identity. Stung by betrayal, Cassandra travels to the village of Anston only to learn Mr. Clark has since passed away.

Forced to run for her life, Kit FitzGilbert finds herself in the very place she swore never to return to - a London ballroom. There she encounters Graham, Lord Wharton, who believes Kit holds the key to a mystery he's trying to solve. As much as she wishes that she could tell him everything, she can't reveal the truth without endangering those she loves.

Despite the fact that her daughter is not cooperating, Caroline, Duchess of Riverton, is determined to ensure every one of her children marries someone they love as much as she loved their late father. William, the widowered Earl of Blackstone, is delighted to have his days of escorting daughters approaching an end.

He was intrigued...Nathaniel Hammond, Earl of Beverton, is working to restore his new estate and aid his tenants. But everything changes when he meets the beautiful and mysterious Moira Dennison, a bold young woman who offers to hire him, unaware of his title, to help her find her fiancé. Curious and unable to resist, Nathan accepts her offer, keeping his true identity a secret, never dreaming of what the future held for him.

Ewan Cameron has no intention of falling in love with the delectable, bookish Lily Farthingale. He is the estranged grandson of the duke of Lotheil and has come to London because of a deathbed promise to his father. He has no intention of staying beyond his three-month obligation. Nothing can tempt him to remain, not even Lily, the beautiful bluestocking determined not only to restore relations between him and his grandfather, but to turn Ewan into a proper gentleman. 

Captain William Hawksmoor of the Royal Navy never expected to inherit Kingscastle and is none too pleased when he does so. Especially when he learns that he must marry within a year or be forever dealing with trustees. As the new marquis of Athelney, the captain takes command of Kingscastle and discovers much to be done to set it in order. He must also contend with his aunt Lady Willoughby Hawksmoor, who is determined that her daughter will be his wife.

Brook Eden has never known where she truly belongs. Though raised in the palace of Monaco, she's British by birth and was brought to the Grimaldis under suspicious circumstances as a babe. When Brook's friend, Justin, uncovers the fact that Brook is likely a missing heiress from Yorkshire, Brook leaves the sun of the Mediterranean to travel to the moors of the North Sea, to the estate of her supposed family.

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.