It is 1939 - World War II is looming, Oswald Mosley has awoken fascist sympathies among the British aristocracy and, in London, socialites are gathering for the start of the Season. Enter astute Oxford graduate Hope Stapleford, whose quick wit, love of books and keen observations set her apart from her peers. Her rebellious friend Bernadette has persuaded her to take part in the Season and Hope expects little more than a round of dull engagements and dreary introductions.

As the city prepares to celebrate Queen Victoria's golden jubilee, Veronica Speedwell is marking a milestone of her own. After burying her spinster aunt, the orphaned Veronica is free to resume her world travels in pursuit of scientific inquiry - and the occasional romantic dalliance. As familiar with hunting butterflies as she is fending off admirers, Veronica wields her butterfly net and a hatpin with equal aplomb, and with her last connection to England gone, she intends to embark upon the journey of a lifetime.

With her inquisitive mind, Charlotte Holmes has never felt comfortable with the demureness expected of the fairer sex in upper-class society. But even she never thought that she would become a social pariah, an outcast fending for herself on the mean streets of London. When the city is struck by a trio of unexpected deaths and suspicion falls on her sister and her father, Charlotte is desperate to find the true culprits and clear the family name.

The Civil War left its mark on Dr. John Turner. He turns his back on medicine and sees his unexpected inheritance in England as an opportunity to start over. But he never imagines how God intends to use his new role as lord of Ashford Hall or the beautiful woman he finds there to ease his troubled soul. A tragic loss led Penelope Howard to bury her heart and dreams in her work for the Hall and the village of Woodley. But the arrival of the new heir stirs not only her discarded longings but her compassion as well.

The daughter of a baronet and minor heiress, Rosalind Thorne was nearly ruined after her father abandoned the family. To survive in the only world she knew, she began to manage the affairs of some of London society's most influential women, who rely on her wit and discretion. So when artistocratic wastrel Jasper Aimesworth is found dead in London's most exclusive ballroom, Almack's, Rosalind must use her skills and connections to uncover the killer.

London, 1925. With their band the Dizzy Heights, jazz musicians Ivor ‘Skins’ Maloney and Bartholomew ‘Barty’ Dunn are used to improvising as they play the Charleston for flappers and toffs, but things are about to take a surprising turn. 

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.

It's the 1930s, and a mysterious illness is spreading over Scotland. But the noble and ancient family of Inverkillen, residents of Loch Down Abbey, are much more concerned with dwindling toilet roll supplies and who will look after the children now that Nanny has regretfully (and most inconveniently) departed this life. Then Lord Inverkillen, earl and head of the family, is found dead in mysterious circumstances. The inspector declares it an accident but Mrs MacBain, the head housekeeper, isn't so convinced. 

December, 1919. Clever crime reporter Lillie Mead hoped to celebrate a peaceful Christmas in the English countryside. But when a close friend's colleague turns up dead, Lillie knows there'll be little festive spirit until she unwraps this mystery. Following the clues to the wintery Scottish Highlands, she hopes to stop the killer cold before the next body hits the snow. But after she connects the victims to a clandestine wartime committee, she puts herself firmly in the murderer's sights.

London, 1923. Olive Belgrave needs a job. Despite her aristocratic upbringing, she’s penniless. Determined to support herself, she jumps at an unconventional job - looking into the background of her cousin’s fiancé, Alfred. Alfred burst into the upper crust world of London’s high society, but his answers to questions about his past are decidedly vague. Before Olive can gather more than the basics, a murder occurs at a posh party. Suddenly, every Bright Young Person in attendance is a suspect, and Olive must race to find the culprit.

The year is 1883, and in New York City it's a time of dizzying splendor, crushing poverty, and tremendous change. With the gravity-defying Brooklyn Bridge nearly complete and New York in the grips of antivice crusader Anthony Comstock, Anna Savard and her cousin, Sophie - both graduates of the Woman's Medical School - treat the city's most vulnerable, even if doing so may put everything they've strived for in jeopardy.

The orphaned Elsie Camden learned as a girl that there were two kinds of wizards in the world: those who pay for the power to cast spells and those, like her, born with the ability to break them. But as an unlicensed magic user, her gift is a crime. Commissioned by an underground group known as the Cowls, Elsie uses her spellbreaking to push back against the aristocrats and help the common man. Elite magic user Bacchus Kelsey is one elusive spell away from his mastership when he catches Elsie breaking an enchantment. To protect her secret, Elsie strikes a bargain.

Lucy Scarpelli, an Italian dressmaker from New York, befriends socialite Rowena Langdon as she's making her summer wardrobe. It's an unlikely friendship, but one that Rowena encourages by inviting Lucy to the family mansion in Newport, Rhode Island. Grateful for Lucy's skill in creating clothes that hide her physical injury, Rowena encourages Lucy to dream of a better future.

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.

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 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. With the New Year’s Eve ball approaching fast and the hotel’s reputation hanging by a thread, Cleo must find the killer before the ball, and the hotel itself, are ruined.