Having inexplicably nabbed the duke of Kesgrave, 26-year-old spinster Beatrice Hyde-Clare is determined to marry him at once, and no amount of hand-wringing from anxious family members, worried friends, and well-meaning acquaintances will convince her to delay. Except, maybe, she is a little swayed by her uncle’s efforts to make amends for treating her with cold indifference during her childhood.

Having long abandoned any hope of making a match, 26-year-old Beatrice Hyde Clare finds herself a little overwhelmed by her engagement to the Duke of Kesgrave. Cloying society matrons clamor for her attention while her aunt reels off an endless list of servants she will have to oversee. Even the most intrepid female would quake at the prospect of managing eight footmen! Fortunately, Bea knows the perfect distraction - an intriguing mystery - and pays a call on the Countess of Abercrombie, who had promised her that very thing only the evening before.    

Finally, Flora Hyde-Clare has wrest the narrative from Beatrice by finding her own compelling murder mystery to solve. Well, it’s not entirely her own because the victim is her cousin’s former beau Mr. Theodore Davies, whose father cruelly separated the young lovers (though not so cruelly, for it left the door open for Bea to woo the duke of Kesgrave).

Having solved the two murders that somehow fell in her path, Beatrice Hyde-Clare is on the lookout for a third. Through a absurd quirk of stupid fate, the shy spinster has fallen in love with the thoroughly unattainable Duke of Kesgrave and is desperate for something, anything, to occupy her mind. A dead body would do nicely.

Since the new Duchess of Kesgrave cannot be swayed from her unfortunate interest in dead bodies, Lady Abercrombie decides to confront the matter head-on by hosting a murder mystery dinner party. Gathering together several of society’s most influential members, she concocts an amusing puzzle-play, assigns roles, and stands back to allow Bea to impress them all with her ingenuity.

Despite suffering a few initial setbacks, the former Beatrice Hyde-Clare has settled into her new position nicely. Thanks to Lady Abercrombie’s machinations, she has secured the admiration of society and finally earned the respect of her staff. Even the lessons in defending herself, which her husband, the Duke of Kesgrave, insists she take if she wants to continue in her dangerous avocation, are going well. But then she learns from a most unlikely source that Kesgrave’s malevolent uncle is scheming to destroy her happiness.

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.

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.  

Kitty Underhay is looking forward to a week of long lunches and wedding planning with her husband-to-be, Captain Matthew Bryant. But the plan is derailed when he is called on to collect a former comrade-in-arms, arriving on the 15:50 from Paddington. As the train bearing Simon Travers pulls up to the platform, a piercing scream rises over the screech of its brakes. Travers is dead in his seat, a dagger in his heart. Only a few individuals had access to Travers’s compartment, and Kitty must find out which of these seemingly benign passengers is, in fact, a cross-country killer.

Onetime adventurer and now amateur sleuth Lady Eleanor Swift is attending the annual royal regatta with her new pal Tipsy Fitzroy. Tipsy has Eleanor trussed up like a debutante in a new dress, determined to turn her into a proper society lady. Even Eleanor’s favorite companion, Gladstone the bulldog, has a new outfit for the occasion. But the sparkling prize-giving ceremony is interrupted when the devilishly handsome host gulps his glass of champagne on stage and collapses to the floor. The victim is none other than the king’s cousin, Lord Xander Taylor-Howard.

June 1933. Independent, young Kitty Underhay has been left in charge of her family’s hotel, The Dolphin, on the tranquil English coast. But when several rooms are broken into and searched, including Kitty’s own, she quickly realizes that something out of the ordinary is afoot at the hotel. Soon, rumors are flying in the cozy town that someone is on the hunt for a stolen ruby. A ruby that Kitty’s mother may well have possessed when she herself went missing during the Great War.

November 1933. Amateur sleuth-cum-dutiful granddaughter Kitty Underhay stifles a sigh of boredom as she attends the annual Hoteliers' Association Dinner and Dance on behalf of her grandmother, the proprietress of the Dolphin Hotel. She hopes the company of ex-army captain Matthew Bryant will enliven the otherwise dull evening. That is, until bullish and overbearing local councilor Harold Everton drops dead into his bowl of consommé. 

Late summer 1933. After a quarrel with too-plucky-for-her-own-good amateur sleuth Kitty Underhay, dashing ex-army captain Matthew Bryant is nursing his wounds, and a tumbler of brandy, when there’s a heavy knock at the door and he finds himself arrested for murder. The body of aspiring actress Pearl Bright has been found, strangled with one of Matt’s own bootlaces, and the evidence seems to be stacked against him. The local constabulary might have locked Matt up, but before they can throw away the key, Kitty hears the news and hies to his aid, determined to prove his innocence. 

The year 1934. Kitty Underhay steps out of the battered Rolls Royce and onto the graveled driveway of Thurscomb Castle in deepest Yorkshire. She’s honored to be a bridesmaid at her cousin Lucy’s wedding to the reluctant Lord Rupert Woodcomb, but as family and friends gather for welcome drinks, Kitty dodges intrusive questions about her own marital status by taking a stroll about the castle grounds. As she passes through the manicured gardens, a fatal shot rings out....

Summer 1933. Fresh from the discovery that she has family living nearby, Kitty Underhay has packed her carpet bag, commandeered a chambermaid and set off on a visit to stately Enderley Hall. She’s looking forward to getting to know her relatives, as well as the assembled group of house guests. But when elderly Nanny Thoms is found dead at the bottom of the stairs after papers of national importance are stolen, Kitty quickly learns that Muffy the dog’s muddy paws on her hemline are the least of her problems.