When a maid in the upper class Ellison household is strangled, Inspector Pitt is called in to investigate. He finds a world ruled by strict manners and social customs, where the inhabitants of the Ellison's neighborhood appear to be more outraged by the thought of scandal than they are by murder. Inspector Pitt finds a most unlikely ally in Charlotte, the Ellison's spirited daughter. But as the murders continue, Charlotte and Pitt find themselves drawn together by more than the investigation.

His name, they tell him, is William Monk, and he is a London police detective. But the accident that felled him has left him with only half a life; his memory and his entire past have vanished. As he tries to hide the truth, Monk returns to work and is assigned to investigate the brutal murder of a Crimean War hero and man about town. Which makes Monk’s efforts doubly difficult, since he’s forgotten his professional skills along with everything else.

On vacation from London on the beautiful Italian coast, 28-year-old Elena Standish and her older sister Margot have finally been able to forget some of the lasting trauma of the Great War. Touring with her camera in hand, Elena has found new inspiration in the striking Italian landscape, and she's met an equally striking man named Ian. Not ready to part from one another, she and Ian share a train trip home to England. But a shocking murder disrupts their agenda, forcing Elena to personally deliver a message to Berlin that could change the fate of Europe.

The year is 1861. The American Civil War has just begun, and London arms dealer Daniel Alberton is becoming a very wealthy man. His quiet dinner party seems remote indeed from the passions rending America. Yet investigator William Monk and his bride, Hester, sense growing tensions and barely concealed violence.

Scuff has come a long way from his time as a penniless orphan scraping together a living on the banks of the Thames. Now he's studying medicine at a free clinic run by Dr. Crowe. Lately Crowe has grown distracted after witnessing an altercation between a former patient of his named Ellie—a woman he not only treated but grew to love—and her controlling fiancé. It seems someone is forcing Ellie to marry the man, and as Crowe's emotions come flooding back, he sets out to uncover the troubling connection between Ellie, her father, and her betrothed.

Mariah Ellison, Charlotte Pitt's grandmother, accepts her longtime friend Winnie's gracious invitation to spend Christmas with her and her husband, Barton, in their picturesque village. But upon arrival, Mariah discovers that Winnie has vanished without a trace, and Barton rudely rescinds the invitation. Once Mariah finds another acquaintance to stay with during the holiday season, she begins investigating Winnie's disappearance.

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.

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.

Following the death of her husband, Lady Darby has taken refuge at her sister's estate, finding solace in her passion for painting. But when one of the house guests is murdered, her brother-in-law asks her to aid the insufferable Sebastian Gage - a fellow guest with some experience as an inquiry agent. While Gage is clearly more competent than she first assumed, Kiera isn't about to let her guard down, as accusations and rumors swirl.

The daughter of a distinguished soldier, Bess Crawford follows in his patriotic footsteps, volunteering to serve her country as a nurse during the Great War. In 1916 she promises Lieutenant Arthur Graham that she will carry his dying request to a brother. When Bess arrives at the Graham house in Kent, Jonathan Graham listens to his brother's last wishes with surprising indifference.

It's 1811, and the threat of revolution haunts the upper classes of King George III's England. Then a beautiful young woman is found savagely murdered on the altar steps of an ancient church near Westminster Abbey. A dueling pistol found at the scene and the damning testimony of a witness both point to one man - Sebastian St. Cyr, Viscount Devlin, a brilliant young nobleman shattered by his experience in the Napoleonic Wars.

In a scrap heap within an abandoned factory, the greatest invention in history lies dormant and unused. By what fatal error of judgment has its value gone unrecognized, its brilliant inventor punished rather than rewarded for his efforts? In defense of those greatest of human qualities that have made civilization possible, one man sets out to show what would happen to the world if all the heroes of innovation and industry went on strike.

The year is 1920: Flying in the face of convention, legendary American adventuress Beryl Helliwell never fails to surprise and shock. The last thing her adoring public would expect is that she craves some peace and quiet. The humdrum hamlet of Walmsley Parva in the English countryside seems just the ticket. And, honestly, until America comes to its senses and repeals Prohibition, Beryl has no intention of returning stateside and subjecting herself to bathtub gin.

After an assault at her family home in Maine, Dr. Miranda Jones is determined to put the experience behind her. Distraction comes when she is summoned to Italy - to verify the authenticity of a Renaissance bronze of a Medici courtesan known as The Dark Lady. But instead of cementing Miranda’s reputation as the leading expert in the field, the job nearly destroys it when her professional judgment is called into question.

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.