There are 16 books in the Barker and Llewelyn series. The newest book is Season of Death .

1
Some Danger Involved

Book cover of Some Danger Involved
An atmospheric debut novel set on the gritty streets of Victorian London, Some Danger Involved introduces detective Cyrus Barker and his assistant, Thomas Llewelyn, as they work to solve the gruesome murder of a young scholar in London's Jewish ghetto.

When the eccentric and enigmatic Cyrus Barker takes on the…
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2
To Kingdom Come

Book cover of To Kingdom Come
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…

3
The Limehouse Text

Book cover of The Limehouse Text
Discovering a pawn ticket that leads them to London's Chinatown district, Victorian enquiry agent Cyrus Barker and his assistant, Thomas Llewelyn, retrieve a seemingly innocuous book that turns out be a rare stolen text containing martial arts secrets that are forbidden to the West. Simultaneous.

4
The Hellfire Conspiracy

Book cover of The Hellfire Conspiracy
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…

5
The Black Hand

Book cover of The Black Hand
“This atmospheric historical thriller is as good as it gets” (Julia Spencer-Fleming, author of I Shall Not Want) in the evocative Barker and Llewelyn series as mysterious murders hint at a dark conspiracy in the heart of London.

When an Italian assassin’s body is found floating in a barrel in…

6
Fatal Enquiry

Fatal Enquiry

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…

7
Anatomy of Evil

Anatomy of Evil

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…

8
Hell Bay

Book cover of Hell Bay

"If you love Sherlock Holmes, historical mysteries, or just a good, rousing adventure, you'll love these books, too." - Laurell K. Hamilton

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…

9
Old Scores

Book cover of Old Scores

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…

10
Blood Is Blood

Book cover of Blood Is Blood

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…

11
Lethal Pursuit

Lethal Pursuit

"The true star power comes from its compatibly mismatched leads. Joy to those who discover Mr. Thomas’s latest novel this holiday season." ―The Wall Street Journal

London, 1892―Cyrus Barker is brought into a game of international espionage by the Prime Minister himself in the newest mystery in Will Thomas's beloved…

12
Dance with Death

Book cover of Dance with Death

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…

13
Fierce Poison

Book cover of Fierce Poison

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…

14
Heart of the Nile

Book cover of Heart of the Nile

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's Heart of the Nile.

Cyrus Barker, along with his former assistant and now partner…