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Barker & Llewelyn
Series · 17
books · 2004-2025

Books in series

Some Danger Involved book cover
#1

Some Danger Involved

2004

An atmospheric debut novel set on the gritty streets of Victorian London, Some Danger Involved introduces detective Cyrus Barker and his apprentice, Thomas Llewelyn, as they work to solve the gruesome murder of a young scholar. When a student bearing a striking resemblance to artists' renderings of Jesus Christ is found murdered—by crucifixion—in London's Jewish ghetto, 19th-century private detective Barker must hire an assistant to help him solve the sinister case. Out of all who answer an ad for a position with "some danger involved," the eccentric and enigmatic Barker chooses downtrodden Llewelyn, a gutsy young man whose murky past includes recent stints at both an Oxford college and an Oxford prison. As Llewelyn learns the ropes of his position, he is drawn deeper and deeper into Barker's peculiar world of vigilante detective work, as well as the dark heart of London's teeming underworld. Together they pass through chophouses, stables, and clandestine tea rooms, tangling with the early Italian mafia, a mad professor of eugenics, and other shadowy figures, inching ever closer to the shocking truth behind the murder.
To Kingdom Come book cover
#2

To Kingdom Come

2005

Volunteering to infiltrate a secret organization of Irish dissenters believed to be responsible for bombing a new branch of Scotland Yard, nineteenth-century private detective Cyrus Barker and his reluctant assistant, Thomas Llewelyn, learn of plans to bomb dozens of London locations. By the author of Some Danger Involved. 50,000 first printing.
The Limehouse Text book cover
#3

The Limehouse Text

2006

In The Limehouse Text, Barker and Llewelyn discover a pawn ticket among the effects of Barker's late assistant, leading them to London's Chinese district, Limehouse. There they retrieve an innocent-looking book that proves to be a rare and secret text stolen from a Nanking monastery, containing lethal martial arts techniques forbidden to the West. With the political situation between the British Empire and Imperial China already unstable, the duo must not only track down a killer intent upon gaining the secret knowledge but also safeguard the text from a snarl of suspects with conflicting interests. Prowling through an underworld of opium dens, back-room blood sports, and sailors' penny hangs while avoiding the wrath of the district's powerful warlord, Mr. K'ing, Barker and Llewelyn take readers on a perilous tour through the mean streets of turn-of-the-century London.
The Hellfire Conspiracy book cover
#4

The Hellfire Conspiracy

2007

In the latest adventure in what is "fast becoming one of the genre's best historical-mystery series" (Booklist), roughhewn private enquiry agent Cyrus Barker and his assistant Thomas Llewelyn must track down London's first serial killer. When Barker and Llewelyn are hired to find a girl from the upper classes who has gone missing in the East End, they assume her kidnapping is the work of white slavers. But when they discover five girls have been murdered in Bethnal Green, taunting letters begin to arrive in Craig's Court from a killer calling himself Mr. Miacca. Barker fears that Miacca might be part of the Hellfire Club, a group of powerful, hedonistic aristocrats performing Satanic rituals. He must track the fiend to his hideout, while Llewelyn confronts the man who put him in prison. Dodging muckrakers, navigating the murky Thames under cover of darkness, and infiltrating London's most powerful secret society, The Hellfire Conspiracy is another wild ride that "brings to life a London roiling with secret leagues, deadly organizations, and hidden clubs" (Ron Bernas, Detroit Free Press).
The Black Hand book cover
#5

The Black Hand

2008

When an Italian assassin's body is found floating in a barrel in Victorian London's East End, enquiry agent Cyrus Barker and his assistant Thomas Llewelyn are called in to investigate. Soon corpses begin to appear all over London, each accompanied by a Mafia Black Hand note. As Barker and Llewelyn dig deeper, they become entangled in the vendettas of rival Italian syndicates—and it is no longer clear who is a friend or foe.
Fatal Enquiry book cover
#6

Fatal Enquiry

2014

Brimming with wit, atmosphere, and unforgettable characters, FATAL ENQUIRY reintroduces private enquiry agent Cyrus Barker and his assistant, Thomas Llewellyn, and their unforgettable world of Victorian London. Some years ago, Cyrus Barker matched wits with Sebastian Nightwine, an aristocrat and sociopath, and in exposing his evil, sent Nightwine fleeing to hide from justice somewhere in the far corners of the earth. The last thing Barker ever expected was to encounter Nightwine again—but the British government, believing they need Nightwine's help, has granted him immunity for his past crimes, and brought him back to London. Nightwine, however, has more on his mind than redemption—and as Barker and Llewellyn set out to uncover and thwart Nightwine's real scheme, they find themselves in the gravest danger of their lives.
Anatomy of Evil book cover
#7

Anatomy of Evil

2015

In London of 1888, Private Enquiry Agent Cyrus Barker takes on his biggest case ever—the attempt to find and stop the killer terrorizing Whitechapel: Jack the Ripper Cyrus Barker is undoubtedly England’s premiere private enquiry agent. With the help of his assistant Thomas Llewelyn, he’s developed an enviable reputation for discreetly solving some of the toughest, most consequential cases in recent history. But one evening in 1888, Robert Anderson, the head of Scotland Yard’s Criminal Investigation Department (CID), appears at Barker’s office with an offer. A series of murders in the Whitechapel area of London are turning the city upside down, with tremendous pressure being brought to bear on Scotland Yard and the government itself. Barker is to be named temporary envoy to the Royal Family with regard to the case while surreptitiously bringing his investigative skill to the case. With various elements of society, high and low, bringing their own agenda to increasingly shocking murders, Barker and Llewellyn must find and hunt down the century’s most notorious killer. The Whitechapel Killer has managed to elude the finest minds of Scotland Yard—and beyond—he’s never faced a mind as nimble and a man as skilled as Cyrus Barker. But even Barker’s prodigious skills may not be enough to track down a killer in time.
Hell Bay book cover
#8

Hell Bay

2016

When two people are murdered during a secret government conference on a secluded island estate, private enquiry agent Cyrus Barker must find the killer among the guests before it’s too late. At the request of Her Majesty’s government, private enquiry agent Cyrus Barker agrees to take on his least favorite kind of assignment—he’s to provide security for a secret conference with the French government. The conference is to take place on the private estate of Lord Hargrave on a remote island off the coast of Cornwall. The goal of the conference is the negotiation of a new treaty with France. The cover story for the gathering is a house party—an attempt to introduce Lord Hargrave’s two unmarried sons to potential mates. But shortly after the parties land at the island, Lord Hargrave is killed by a sniper shot, and the French ambassador’s head of security is found stabbed to death. The only means of egress from the island—a boat—has been sent away, and the means of signaling for help has been destroyed. Trapped in a manor house with no way of escape, Cyrus Barker and his assistant, Thomas Llewelyn, must uncover which among them is the killer before the next victim falls.
An Awkward Way to Die book cover
#8.5

An Awkward Way to Die

2017

Includes 8 FREE CHAPTERS of OLD SCORES, the next installment in the adventures of Cyrus Barker and Thomas Llewelyn, private enquiry agents in Victorian London! Cyrus Barker is, without question, the most prominent and accomplished private enquiry agent in 19th century London. He's taken on major cases at the request of Scotland Yard and for Her Majesty's Government. He's matched wits with master criminals and triumphed and cracked the seemingly unsolvable crimes. But now he faces what might be the most dastardly crime of his career - his personal tobacconist has been murdered, his body found in his own humidor! Now Cyrus Barker, with the help of his assistant, Thomas Llewelyn, must crisscross London in order to track the killer. As they follow the clues, Barker discovers that the victim, Vasilios Dimitriadis, was not a man worthy of Barker's trust. Can the Guv find whoever killed the skilled tobacco blender? While he is at it, can he find the secret formula Dimitriadis used to make his beloved tobacco blend?
Old Scores book cover
#9

Old Scores

2017

When a Japanese diplomat is murdered, and Cyrus Barker is the prime suspect, Barker and sidekick Llewelyn must work against the clock to find the real killer. In London of 1890, the first Japanese diplomatic delegation arrives in London to open an embassy in London. Cyrus Barker, private enquiry agent and occasional agent for the Foreign Service Office, is enlisted to display his personal Japanese garden to the visiting dignitaries. Later that night, Ambassador Toda is shot and killed in his office and Cyrus Barker is discovered across the street, watching the very same office, in possession of a revolver with one spent cartridge. Arrested by the Special Branch for the crime, Barker is vigorously interrogated and finally released due to the intervention of his assistant, Thomas Llewelyn, and his solicitor. With the London constabulary still convinced of his guilt, Barker is hired by the new Japanese ambassador to find the real murderer. In a case that takes leads Barker and Llewelyn deep into parts of London's underworld, on paths that lead deep into Barker's own mysterious personal history, Old Scores is the finest yet in Will Thomas' critically acclaimed series.
Blood Is Blood book cover
#10

Blood Is Blood

2018

A bombing injures private enquiry agent Cyrus Barker, leaving it up to his soon-to-be-married junior partner—Thomas Llewelyn—to find the person trying to murder them both before it's too late. In 19th century London, Cyrus Barker and his associate Thomas Llewelyn are renowned private enquiry agents, successfully employed by the highest levels of Her Majesty's government as well as private citizens. Their success, however, has led to their acquiring a powerful group of enemies, many of whom are determined to have their revenge. At least one of those enemies is responsible for a bombing of their offices that puts Cyrus Barker into the hospital and endangers Thomas Llewelyn's rapidly forthcoming nuptials. To add to the confusion, Barker's long-lost brother Caleb turns up on the rubble of their doorstep not long after the not-quite-fatal bombing. Unsure of Caleb and warned about him by Barker, Thomas reluctantly accepts Caleb's help both with a new case that comes in as well as trying to pinpoint which of Barker's enemies is making a move against them. As Thomas works his way through their enemy list, someone else is winnowing down that list: one by one those enemies are dying. With time running out—and his bride-to-be reconsidering their marriage—Llewelyn must (with the sick-bed bound Barker's help) uncover the killer and the plot before it's too late.
Lethal Pursuit book cover
#11

Lethal Pursuit

2019

London, 1892—Cyrus Barker is brought into a game of international espionage by the Prime Minister himself in the newest mystery in Will Thomas' beloved series. Private enquiry agents Cyrus Barker and Thomas Llewelyn receive in the mail an unexplained key stamped with the letter Q. Barker, recognizing it for what it is, uses the key to unlock an anonymous door in the alleyway, which opens to an underground tunnel leading to Downing Street. The Prime Minister has a small task for Cyrus Barker. A Foreign Office agent stole a satchel in Eastern Europe, but was then himself murdered at Charing Cross. The satchel contains a document desperately wanted by the German government, but while the agent was killed, the satchel remains in English hands. With a cold war brewing between England and Germany, it's in England's interest to return the document contained in the satchel to its original owners and keep it out of German hands. The document is an unnamed first century gospel; the original owner is the Vatican. And the German government isn't the only group trying to get possession of it. With secret societies, government assassins, political groups, and shadowy figures of all sorts doing everything they can—attacks, murders, counter-attacks, and even massive street battles—to acquire the satchel and its contents, this small task might be beyond even the prodigious talents of Cyrus Barker.
Dance with Death book cover
#12

Dance with Death

2021

London, 1893: Private enquiry agents Cyrus Barker and Thomas Llewelyn are called in to protect Tsesarevich Nicholas from nefarious forces as he travels to England for a royal wedding―in Dance with Death, the next mystery in Will Thomas’s beloved series. In June of 1893, the future Nicholas II travels to London for a royal wedding, bringing with him his private security force and his ballerina mistress, Mathilde Kchessinska. Rumored to be the target of a professional assassin known only as La Sylphide, and the subject of conspiracies against his life by his own family who covet his future throne, Nicholas is protected by not only private security, but the professional forces of both England and Russia. All of these measures prove inadequate when Prince George of England is attacked by an armed anarchist who mistakes him for Nicholas. As a result, Barker and Llewelyn are brought in to help track down the assassin and others who might conspire against the life of the tsesarevich . The investigations lead them down several paths, including Llewelyn's old nemesis, the assassin Sofia Ilyanova. With Barker and Llewelyn both surviving separate attempts on their lives, the race is on to find both the culprit and the assassin they hired. Taking them through high society (including a masked ball at Kensington Palace) and low, chasing down motives both personal and political, Barker and Llewelyn must solve the case of their life before the crime of the century is committed.
Fierce Poison book cover
#13

Fierce Poison

2022

London, 1893, there is poisoner loose in the city, with deaths piling up, and private enquiry agents Cyrus Barker and Thomas Llewelyn are apparently his next target in Fierce Poison by Will Thomas. Private Enquiry agent Cyrus Barker has just about seen it all—he's been attacked by assassins, his office has been bombed, and evil-doers have even nearly killed his dog. But never before has a potential client dropped dead in his office. When Roland Fitzhugh, Member of Parliment arrives to consult Barker and his partner Thomas Llewelyn, he falls to the floor, dead, upon entering. As they soon learn, he's been poisoned with a cyanide laced raspberry tart, and the adulterated tarts also take out an entire family in the East End. Labelled the Mad Pie Man by the press, Barker and Llewelyn are hired by former Prime Minister William Gladstone to find out who has targeted the House of Commons' newest member. But before they can even begin, they find themselves the latest target of this mad poisoner—with Barker's butler poisoned with digitalis and dozens of diabolic traps discovered at their home. On the run from their unseen adversary, Barker and Llewelyn must uncover the threads that connect these seemingly random acts and stop the killer before they and their closest friends and family become the latest casualties.
Heart of the Nile book cover
#14

Heart of the Nile

2023

London, 1893 - deadly doings are afoot in the British Museum and private enquiry agents Cyrus Barker and Thomas Llewelyn must unravel a mystery involving a mummy, a giant ruby and a murder, in Will Thomas' Heart of the Nile . Cyrus Barker, along with his former assistant and now partner Thomas Llewelyn, is the premier enquiry agent in all of 19th century London, and beyond. They've thwarted the designs of villains and crooks off all sorts, helped Scotland Yard crack their most challenging cases, and worked for the Her Majesty's Government at the very highest levels. But nothing has been quite as challenging and dangerous as the latest case that comes to find them. In 1893, a volunteer at the British Museum makes a startling discovery. When examining a mummy in the museum's collection, he discovers there is a giant ruby in the shape of a heart buried in the chest of the mummy. Even more startling, the mummy might well be Cleopatra. The following morning, the volunteer is found floating in the Thames and the ruby has gone missing. Hired by the victim’s wife to learn the truth behind his death, Barker and Llewelyn find themselves in the crosshairs - now they must avoid a violent street gang, a ruthless collector, and the British Museum itself in order to find the killer and safeguard the gem.
Death and Glory book cover
#15

Death and Glory

2024

Private Enquiry agent Cyrus Barker, along with his partner Thomas Llewelyn, has a long, accomplished history - he's taken on cases for Scotland Yard, the Foreign Office, and even the crown itself, fulfilling them all with great skill and discretion. None of those cases, however, are as delicate and complicated as the one laid before him by a delegation of men who, thirty years before, fought for the Confederacy during the American Civil War. These men want to revive the Confederacy with a warship promised to the Rebels from the British Government in 1865. To get it now, they're threatening to reveal the long-secret treaty with the Confederacy. Barker is hired to use his connections to discreetly bring their threats to the Prime Minister. With a web of prominent, if secret, supporters throughout England ready to through their support to their efforts to wage war anew on the United States, the delegates are just waiting for the warship to begin their plans. But some of the men are not who they claim to be, and the American government has their own team watching, and waiting, for the right moment to take action. As this fuse on this powder keg of a situation grows ever shorter, it's up to Barker & Llewelyn to uncover the real identities and plans of these dangerous men.
Season of Death book cover
#16

Season of Death

2025

In late Victorian England, private enquiry agents Cyrus Barker and Thomas Llewelyn find themselves in the middle of the deadly chaos when powerful forces align to take over London's criminal underworld. "Antony Ferguson transports listeners to London.... The sharp writing and Ferguson's narration capture all the bizarre twists and turns."— AudioFile on Heart of the Nile Private enquiry agent Cyrus Barker, along with his partner Thomas Llewelyn, has a long, accomplished history—he's worked with all aspects of society, from the highest (including the Crown and the government) to the lowest (various forces in London's underworld). He's been the target of murder attempts, character assassination, bombings and attacks upon his closest associates but never has he and his agency partner Thomas Llewelyn faced such destruction and potential disaster. The sudden collapse of a railway tunnel in the East End of London kills dozens and shuts down services all over the city. Meanwhile, a mysterious beggar calling herself “Dutch” guides Barker and Llewelyn to an attempt by a powerful aristocrat to take over London's criminal underworld. With a missing heiress and a riot at a women’s shelter acting as distractions designed to stop the duo from getting to the truth, Barker must relentlessly fight to reach the trust while Llewelyn wonders how a simple beggar woman can be the catalyst for such destruction. A Macmillan Audio production from Minotaur Books.

Author

Will Thomas
Will Thomas
Author · 17 books

Librarian Note: There is more than one author in the GoodReads database with this name. See this thread for more information. Will Thomas, born 1958 in Bucks County, Pennsylvania, is a novelist who writes a Victorian mystery series featuring Cyrus Barker, a Scottish detective or "private enquiry agent," and his Welsh assistant, Thomas Llewelyn. The Barker/Llewelyn novels are set in the 1880s and often feature historical events, people, and movements. Martial combat is a recurring theme throughout this hardboiled series. Prior to writing novels, Will Thomas wrote essays for Sherlock Holmes society publications and lectured on crime fiction of the Victorian era. Will Thomas' first novel, Some Danger Involved, was nominated for a Barry Award and a Shamus Award, and won the 2005 Oklahoma Book Award. In 2015, he won the Oklahoma Book Award a second time for Fatal Enquiry. Will Thomas has been featured on the cover of Library Journal, and was the Toastmaster at the 2007 Great Manhattan Mystery Conclave in Manhattan, Kansas. His fifth novel, The Black Hand, was nominated for a 2009 Shamus Award. He is married to author Julia Bryan Thomas. Series: . Barker and Llewelyn

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