Twenty-six-year-old Beatrice Hyde-Clare is far too shy to investigate the suspicious death of a fellow guest in the Lake District. A spinster who lives on the sufferance of her relatives, she would certainly not presume to search the rooms of her host's son and his friend looking for evidence. Reared in the twin virtues of deference and docility, she would absolutely never think to question the imperious Duke of Kesgrave about anything, let alone how he chose to represent the incident to the local constable. And yet that's exactly what she does.

Librarian Sylvia Ashe knows nothing about her past, having grown up without a father and a mother who refused to discuss him. When she stumbles upon a diary that suggests she's descended from magicians, she's skeptical. After all, magicians are special, and she's just an ordinary woman who loves books. She seeks answers from a member of the most prominent family of magicians, but she quickly learns that finding the truth won't be easy, especially when he turns out to be as artless as her, and more compelling and dangerous than books.

England, 1920. Eleanor Swift has spent the last few years travelling the world: taking tea in China, tasting alligators in Peru, escaping bandits in Persia and she has just arrived in England after a chaotic 45-day flight from South Africa. Chipstone is about the sleepiest town you could have the misfortune to meet. But then, from the edge of a quarry, through the driving rain, Eleanor is shocked to see a man shot and killed in the distance. Before she can climb down to the spot, the villain is gone and the body has vanished.

December 1899. After the death of her beloved grandmother, Cleopatra Fox moves into the luxury hotel owned by her estranged uncle in the hopes of putting hardship and loneliness behind her. But the poisoning of a guest on Christmas eve throws her new life, and the hotel, into chaos. Cleo quickly realizes no one can be trusted, not Scotland Yard and especially not the hotel’s charming assistant manager.

As the eldest son of the Duke of Langford, Nathaniel Gresham sees his arranged marriage to Lady Violet Devere as just another obligation to fulfil – highly suitable, if unexciting. But as Violet sets out to transform herself from dowdy wallflower to dazzling young duchess-to-be, proper Nathaniel sets out to prove he's a match for his new bride's vivacity and daring.

At the end of her first unsuccessful season out in society, Lady Georgiana has all but given up on attracting a suitable man - until she receives an invitation to a masked Halloween ball at Broxley Manor. Georgie is uncertain why she was invited, until she learns that the royal family intends to marry her off to a foreign prince, one reputed to be mad.

The Earl of Wrexford possesses a brilliant scientific mind, but boredom and pride lead him to reckless behavior. He does not suffer fools gladly. So when pompous, pious Reverend Josiah Holworthy publicly condemns him for debauchery, Wrexford unsheathes his rapier-sharp wit and strikes back. As their war of words escalates, London's most popular satirical cartoonist, A. J. Quill, skewers them both.

Oliver Dasenby is the most infuriating man Primrose Garland has ever known. He may be her brother's best friend, but he has an atrocious sense of humor. Eight years in the cavalry hasn't taught him solemnity, nor has the unexpected inheritance of a dukedom. But when Oliver inherited his dukedom, it appears that he also inherited a murderer. Oliver might be dreadfully annoying, but Primrose doesn't want him dead. She's going to make certain he survives his inheritance - and the only way to do that is to help him catch the murderer!

Selena Lockhart comes with neither fortune nor connections, and she knows better than to expect society to give her a welcome—especially after her father gambled away his fortune, precipitating the family’s sudden fall from grace and Selena’s betrothed to break off the engagement. It therefore comes as no surprise that her new neighbor, Sir Lucius, treats her with disdain. Why should he look beyond appearances when her own promises so little?

Miss Emma Harlow hasn't earned the reputation as a hoyden for nothing, so when the duke of Trent discovers her in his conservatory stealing one of his orchids, he isn't surprised - charmed, delighted and puzzled, yes, but not surprised. It is Emma who is amazed. But her vexation doesn't last long. For Emma is a practical young lady with a mission: to end her dear sister Lavinia's engagement to the villainous (and dreadfully dull!) Sir Waldo Windbourne, and she thinks that the famous libertine is just the man for the job.