Book 1

Some Danger Involved

by Will Thomas

Published 3 June 2004
Nineteenth-century private detective Cyrus Barker teams up with Thomas Llewelyn, a young man with a murky past, to investigate the killing of a young scholar bearing a startling resemblance to artists' renderings of Jesus Christ.

Book 2

To Kingdom Come

by Will Thomas

Published 1 June 2005
This is a 19th century mystery. When the Irish Republican Brotherhood bomb Scotland Yard in May 1885, private enquiry agent Cyrus barker and his apprentice, Thomas Llewelyn, offer their services to the Home Office. In order to infiltrate and bring down the faction responsible, the duo impersonate a reclusive bomb maker and his anarchist assistant who are willing to help the Irish terrorists in their plan to blow up London buildings and destroy the monarchy. After a demonstration of their abilities, they are initiated into the faction. As Barker investigates the identity of the Brotherhood's real leader, Llewelyn finds himself in a heated relationship with a headstrong Irish lass with ties to the radical group. And now, the detectives must risk everything to save London from being blown to kingdom come.

Book 3

The Limehouse Text

by Will Thomas

Published 4 July 2006
Victorian enquiry agent, Cyrus Barker and his assistant Thomas Llewelyn return in this latest novel from the author of the award-winning "To Kingdom Come". In "The Limehouse Text", Barker and Llewelyn discover a pawn ticket among the effects of Barker's late assistant, which leads them to London's Chinatown district, Limehouse, to retrieve an innocent looking book. Things are never what they seem there, however, and soon they learn the book is a rare and secret text stolen from a Chinese monastery, containing lethal martial arts techniques forbidden to the West. With the political situation between the British Empire and Imperial China already in peril, the duo must track down a killer intent upon gaining the secret knowledge while safeguarding the text from a snarl of dubious characters with crossed interests. Moving through a hidden world of opium dens, back-room blood sports, and sailor's penny hangs, while avoiding the wrath of the district's powerful warlord, Mr K'ing, Barker and Llewelyn take readers on a wild and dangerous tour through the mean streets of turn-of-the-century London.

Book 4

The Hellfire Conspiracy

by Will Thomas

Published 10 July 2007

Book 5

The Black Hand

by Will Thomas

Published 1 July 2008

Book 6

The Bughouse Affair

by Will Thomas

Published 13 May 2014

Book 6

Fatal Enquiry

by Will Thomas

Published 13 May 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"--

Book 7

Anatomy of Evil

by Will Thomas

Published 12 May 2015
"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"--

Book 8

Hell Bay

by Will Thomas

Published 25 October 2016
"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"--

Book 9

Old Scores

by Will Thomas

Published 3 October 2017
"In 1890, the first Japanese diplomatic delegation arrives in London to open an embassy. 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's critically acclaimed series"--

Book 10

Blood Is Blood

by Will Thomas

Published 13 November 2018
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.

Book 11

Lethal Pursuit

by Will Thomas

Published 12 November 2019

Book 12

Dance with Death

by Will Thomas

Published 13 April 2021

Book 15

Heart of the Nile

by Will Thomas

Published 11 April 2023

Book 16

Death and Glory

by Will Thomas

Published 23 April 2024

Book 17

Season of Death

by Will Thomas

Published 22 April 2025