In the winter of 1924, Daisy Dalrymple Fletcher travels to a school friend's house to witness the estate's famous Guy Fawkes celebration. But she gets more than the quiet weekend at the quaint family manse that she was originally hoping for. The home is the site of some severe family tension. The Viscount and head of the family is a strict and unyielding sort, insisting that everyone - especially his children - meet his own unreasonable expectations. On the evening of the Guy Fawkes celebration, the Viscount is found dead on the floor of his study, killed by his own hand.

In September 1925, Scotland Yard DCI Alec Fletcher inherits a large house on the outskirts of London from a recently deceased great-uncle. Fortunately so, as he and his wife, the Honorable Daisy Dalrymple Fletcher, are the recent proud parents of twins, and their house is practically bursting at the seams. Though in need of a bit of work, this new, larger house seems a godsend - set in a small circle of houses, with Hampstead Heath nearby, the setting is idyllic. Idyllic, that is until a dead body shows up half-hidden under the bushes of the communal garden.

In early 1925, the Honorable Daisy Dalrymple Fletcher - recent mother of twins - resumes her journalistic career by agreeing to write a piece about the Tower of London - the Bloody Tower - for an American magazine. Invited to observe the centuries-old ritual Ceremony of the Keys, she's spending the night (her first time away from her babies), since the complex is locked and guarded, and the high walls are surrounded by a disused moat.

The inimitable Daisy Dalrymple Fletcher and her husband Detective Chief Inspector Alec Fletcher seem to get a reprieve from their sleuthing duties when they are invited to the wedding of their friend, Lucy Fotheringay. Lucy's grandfather is hosting the ceremony at his beautiful estate and so it promises to be a typical affair with hordes of gossipy aunts and other colorful, but not necessarily pleasant, relatives. Daisy meets all these characters and observes the ensuing familial fraternization with a certain kind of amusing nonchalance.

In March of 1926, Daisy Dalrymple Fletcher and her friend and collaborator, Lady Lucy Gerald, head off for several days to a stately home reputed to have the best grotto in the country. Working on a book of architectural follies, they plan to research and photograph it. Leaving her husband and young twins behind, Daisy is expecting a productive weekend at Appsworth Hall, with the only potential difficulty being keeping Lucy from offending the current owner, a manufacturer of plumbing products. Alas, it's not to be quite so simple.

One morning in April 1924, the Honorable Daisy Dalrymple Fletcher finds herself in a most unenviable position. Despite her best attempts to elude the inevitable, she must face her darkest fears and with all the strength and courage she can muster, must confront the one person she has tried hardest to avoid - the dentist. But upon arriving for her appointment, she finds the waiting room deserted and adjoining examination room locked, with no hint of either Dr. Talmadge or his nurse.

In late 1926, the newly married Daisy Dalrymple and Detective Chief Inspector Alec Fletcher of Scotland Yard take an ocean voyage to America for their honeymoon. Daisy and Alec are accompanied by Daisy's childhood friend, Phillip Petrie; his wife, Gloria; and Gloria's father, American millionaire industrialist Caleb P. Arbuckle, and all are looking forward to a pleasant, uneventful trip. But at the last minute they are joined by Arbuckle's new friend, Yorkshire millionaire Jethro Gotobed, and his new wife, Wanda.

In late 1923, the newly married Daisy Dalrymple and her husband, Detective Chief Inspector Alec Fletcher of Scotland Yard, come to America for a honeymoon visit. In the midst of a pleasure trip, however, both work in a bit of business - Alec travels to Washington, DC, to consult with the US government, Daisy to New York to meet with her American magazine editor.

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. 

In the summer of 1923, the Honorable Daisy Dalrymple makes what should be an uneventful research trip to the Museum of Natural History quite an eventful day - with her nephew, Derek, and her soon-to-be stepdaughter, Belinda, in tow. But as she interviews the various curators for her article on the museums of London, she soon discovers that the Museum of Natural History is a hothouse of professional rivalry and jealousy.

>In July of 1923, the Honorable Daisy Dalrymple travels to Henley-on-Thames to visit her aunt and uncle, as well as to work on her latest writing assignment: covering the Henley Royal Regatta for an American magazine. Daisy plans a simple trip researching her article, enjoying the races, and, come the weekend, having a pleasant time with her fiancé, Detective Chief Inspector Alec Fletcher of Scotland Yard. But the tensions between the Ambrose team's coxswain, Horace Bott - a shopkeeper's son and scholarship student at Oxford - and rower Basil DeLancey - the younger son of an earl and all-around bounder - are constantly threatening to erupt into violence.

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.

It's 1920, and Christmas is coming. Major Lennox finds a body on his doorstep - why on his doorstep? Was it to do with the Countess? Was it about the ruby necklace? Lennox goes to Melrose Court, home to his uncle, Lord Melrose, to uncover the mystery. But then, the murders begin, and it snows, and it all becomes very complicated.

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.

In spring a young man’s fancy will turn to love, and the Honorable Phillip Petrie is no exception. Daisy’s chum is totally smitten with Miss Gloria Arbuckle, daughter of a millionaire Yank. But before the enthusiastic suitor can pop the question, his beloved is abducted. As a distraught Mr. Arbuckle begins assembling the ransom, Phillip enlists Daisy to help him recover his missing sweetheart.