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.

As much as Beatrice Hyde-Clare relished the challenge of figuring out who murdered a fellow guest during a house party in the Lake District, she certainly does not consider herself an amateur investigator. So when a London dandy falls dead at her feet in the entryway of a London Daily Gazette, she feels no compulsion to investigate. It was a newspaper office, after all, and reporters are already on the case as are the authorities.

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.

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.

The former Beatrice Hyde-Clare is having a little trouble adjusting to her new situation. Now installed as the duchess of Kesgrave in elegant splendor in Berkeley Square, she is confounded by the stately residence’s seemingly endless array of rooms. And every time one of the maids addresses her as "your grace", she flinches.

Posie Parker has been called to her most baffling case yet. Amyas Lyle, London’s top young lawyer, has been found with his head in a box of poisoned saltwater. It’s the perfect murder. But who hated him enough to do such a thing? Following a trail of strange notes, all of which speak of the sea and saltwater, Posie travels from London to the seaside resort of Whitley Bay, looking for answers. But nothing can prepare her for what she finds there.

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. 

Winter, 1920. Amateur sleuth Lady Eleanor Swift is feeling festive. She is playing host to the entire village at Henley Hall. She’s also purchased perfect presents for each of her household - not forgetting the biggest bone in the butcher’s shop for her partner in crime, Gladstone the bulldog - and is looking forward to celebrating her first English country Christmas. As snowflakes fall, Eleanor is cheering on contestants in the traditional Christmas fun run in the grounds of the hall. But tragedy strikes when one of the runners drops dead at the finish line.

Earning the nickname Lady Agony was no minor achievement for Lady Agatha Bolingbroke. It required a great deal of effort to make herself so disagreeable, but she did it for a good cause: The fewer invitations she received, the more time she had to paint. Her mother, refusing to accept an unpopular daughter - or, worse, a talented one - insists on dragging her to every event of the season. To thwart her parents and to vent her frustration, Agatha creates a wicked alter ego: a caricaturist whose mocking illustrations take ruthless aim at the ridiculousness of the ton.

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.  

Autumn, 1920. Lady Eleanor Swift, accidental amateur detective and retired explorer, is determined to take a break from investigating murders. So when a local politician dies suddenly at an elegant dinner party at Farrington Manor, she tries her hardest not to listen to the raft of rumors around the village that he might have been poisoned by the fudge. It’s the anniversary of the disappearance of her beloved parents, and she’s promised herself not to get mixed up with any more mysteries. She isn’t sure they’d have approved.  

London is known for its bustle and intrigues, but the sedate English countryside can host - or hide - any number of secrets. Frances, the widowed Countess of Harleigh, needs a venue for her sister Lily's imminent wedding, away from prying eyes. Risings, George Hazleton's family estate in Hampshire, is a perfect choice, and soon Frances, her beloved George, and other guests have gathered to enjoy the usual country pursuits - shooting, horse riding, and romantic interludes in secluded gardens.

No, no, no! It doesn't matter how many times the Duchess of Trent (The Harlow Hoyden) requests her help with a delicate matter regarding a patent for her sister's invention, Tuppence Templeton will not lend a hand. She has a habit, yes, of coming up with ingenious plans to solve other people's problems, and it is true that she's clever and daring enough to pull off the proposed scheme. But there's no way she's going to confront the arrogant and dismissive Earl of Gage again.

November, 1923. Olive’s school chum Gigi invites Olive to London because Gigi’s dotty grandmother fears for her life - or so she’s said to Gigi. However, Olive is surprised to find that the dowager is far from muddled. The sharp and imperious matriarch refuses to admit to her worries and sends Olive on her way.

England, 1920. Lady Eleanor Swift, adventurer extraordinaire and reluctant amateur detective, is taking a break from sleuthing. She’s got much bigger problems: Eleanor has two left feet, nothing to wear and she’s expected at the masked ball at the local manor. Her new beau Lance Langham is the host, so she needs to dazzle. Surrounded by partygoers with painted faces, pirates, priests and enough feathers to drown an ostrich, Eleanor searches for a familiar face. As she follows a familiar pair of long legs up a grand staircase, she’s sure she’s on Lance’s trail.