Jekyll & Hyde: Winter Retreat

Author Tim Major
Hardcover
$26.99 US
| $35.99 CAN
On sale Oct 21, 2025 | 432 Pages | 9781835413487

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The Jekyll & Hyde detective agency must solve a locked-room mystery in this festive installment of the series. A tribute to classic Golden Age crime novels which is perfect for fans of Stuart Turton and Lucy Foley.

When music-hall comedy duo Rolly Daconey and Irina Matei are threatened by a mysterious blackmailer, they turn to the Jekyll & Hyde detective agency for help. But the agency is experiencing turmoil and, unbeknownst to Muriel Carew, Henry Jekyll is ever more reliant on the elixir that transforms him into the brutish Edward Hyde. 

Still, there’s nothing like a good case to clear the air, and the investigation soon points towards Lady Goodram’s winter artists’ retreat. But once Henry and Muriel arrive at Gaunt Manor, they’re trapped by heavy snow, and they find themselves at the centre of a group of bickering performers, stage magicians and inventors whose long-standing rifts and petty grievances threaten to turn ugly. 

To make matters worse, a body is discovered – and the last person with whom the murder victim was seen alive was Edward Hyde. How can the detective agency get to the bottom of the case when their very presence puts everyone at risk? 

A thrilling locked-room mystery featuring the most unusual detectives in the business.
Thrills, chills and skulduggery abound in this truly splendid, madcap mystery-adventure from a writer at the top of his game. Books as fun and skillfully conceived as this one don't come along too often – buy it, read it, cherish it!—Tom Mead, bestselling author of Death and the Conjuror


Jekyll & Hyde: Winter Retreat is a clever concept, skilfully executed. A magnificent Gothic murder mystery which reimagines and makes deft use of the relationship between Dr Jekyll and Mr Hyde. A thrilling and enjoyable read.–Guy Morpuss, author of Five Minds


Henry Jekyll as a consulting detective – but of course, inseparable from his brutish counterpart, Mr Hyde? Count me in! This latest adventure has a great cast of characters and plenty of intriguing twists and turns.—Alison Littlewood, author of A Cold Season


An irresistible story for anyone who – like me – loves classic gothic stories of mystery and detection. Such an ingenious twist to reimagine Edward Hyde and Henry Jekyll as an investigative duo, backed by the ever-resourceful Muriel. Fast-paced, with intricate plotting and great characters. It all adds up to immense fun.—Marisa Linton, author of Circle of Shadows


Another blast of witty, fleet-footed fun, written with great confidence and vigour.—J. S. Barnes


PRAISE FOR JEKYLL & HYDE: CONSULTING DETECTIVES


A wonderful concept, beautifully executed. Delightful and enthralling in equal measure. Replete with a delicious Victorian atmosphere, as thick as a pea-souper.—Jeremy Dyson


Jekyll & Hyde: Consulting Detectives is a fast-paced gothic thriller that is relentlessly engaging, entertaining, and (most important of all) terrific fun.—Tom Mead


Highly enjoyable, terrifically good fun, very well paced, and full of relish for Stevenson's original story.—JS Barnes, author of Dracula's Child


Riveting, ingenious, original. I kinda wish I’d thought of this myself!—Adam Christopher, New York Times bestselling author


Tim Major has come up with one of those “damn it, I wish I’d thought of that” concepts: Henry Jekyll as a dissipated Sherlock Holmes to Edward Hyde’s demented Dr Watson. But this splendid novel is more than just a cool idea; it’s a rip-roaring, dark-hearted tale that yokes a cunning murder-mystery plot to the Gothic horror of Stevenson’s famed novella. The sequel can’t come too soon.—James Lovegrove
Tim Major is a writer and freelance editor from York, UK. His love of speculative fiction is the product of a childhood diet of classic Doctor Who episodes and an early encounter with Triffids. Tim’s most recent books include Hope Island and Snakeskins, short story collection And the House Lights Dim and a monograph about the 1915 silent crime film, Les Vampires, which was shortlisted for a British Fantasy Award. Tim’s short fiction has appeared in Interzone, Not One of Us, Shoreline of Infinity and numerous anthologies, including Best of British Science Fiction, Best of British Fantasy and The Best Horror of the Year. He tweets @onasteamer.

About

The Jekyll & Hyde detective agency must solve a locked-room mystery in this festive installment of the series. A tribute to classic Golden Age crime novels which is perfect for fans of Stuart Turton and Lucy Foley.

When music-hall comedy duo Rolly Daconey and Irina Matei are threatened by a mysterious blackmailer, they turn to the Jekyll & Hyde detective agency for help. But the agency is experiencing turmoil and, unbeknownst to Muriel Carew, Henry Jekyll is ever more reliant on the elixir that transforms him into the brutish Edward Hyde. 

Still, there’s nothing like a good case to clear the air, and the investigation soon points towards Lady Goodram’s winter artists’ retreat. But once Henry and Muriel arrive at Gaunt Manor, they’re trapped by heavy snow, and they find themselves at the centre of a group of bickering performers, stage magicians and inventors whose long-standing rifts and petty grievances threaten to turn ugly. 

To make matters worse, a body is discovered – and the last person with whom the murder victim was seen alive was Edward Hyde. How can the detective agency get to the bottom of the case when their very presence puts everyone at risk? 

A thrilling locked-room mystery featuring the most unusual detectives in the business.

Reviews

Thrills, chills and skulduggery abound in this truly splendid, madcap mystery-adventure from a writer at the top of his game. Books as fun and skillfully conceived as this one don't come along too often – buy it, read it, cherish it!—Tom Mead, bestselling author of Death and the Conjuror


Jekyll & Hyde: Winter Retreat is a clever concept, skilfully executed. A magnificent Gothic murder mystery which reimagines and makes deft use of the relationship between Dr Jekyll and Mr Hyde. A thrilling and enjoyable read.–Guy Morpuss, author of Five Minds


Henry Jekyll as a consulting detective – but of course, inseparable from his brutish counterpart, Mr Hyde? Count me in! This latest adventure has a great cast of characters and plenty of intriguing twists and turns.—Alison Littlewood, author of A Cold Season


An irresistible story for anyone who – like me – loves classic gothic stories of mystery and detection. Such an ingenious twist to reimagine Edward Hyde and Henry Jekyll as an investigative duo, backed by the ever-resourceful Muriel. Fast-paced, with intricate plotting and great characters. It all adds up to immense fun.—Marisa Linton, author of Circle of Shadows


Another blast of witty, fleet-footed fun, written with great confidence and vigour.—J. S. Barnes


PRAISE FOR JEKYLL & HYDE: CONSULTING DETECTIVES


A wonderful concept, beautifully executed. Delightful and enthralling in equal measure. Replete with a delicious Victorian atmosphere, as thick as a pea-souper.—Jeremy Dyson


Jekyll & Hyde: Consulting Detectives is a fast-paced gothic thriller that is relentlessly engaging, entertaining, and (most important of all) terrific fun.—Tom Mead


Highly enjoyable, terrifically good fun, very well paced, and full of relish for Stevenson's original story.—JS Barnes, author of Dracula's Child


Riveting, ingenious, original. I kinda wish I’d thought of this myself!—Adam Christopher, New York Times bestselling author


Tim Major has come up with one of those “damn it, I wish I’d thought of that” concepts: Henry Jekyll as a dissipated Sherlock Holmes to Edward Hyde’s demented Dr Watson. But this splendid novel is more than just a cool idea; it’s a rip-roaring, dark-hearted tale that yokes a cunning murder-mystery plot to the Gothic horror of Stevenson’s famed novella. The sequel can’t come too soon.—James Lovegrove

Author

Tim Major is a writer and freelance editor from York, UK. His love of speculative fiction is the product of a childhood diet of classic Doctor Who episodes and an early encounter with Triffids. Tim’s most recent books include Hope Island and Snakeskins, short story collection And the House Lights Dim and a monograph about the 1915 silent crime film, Les Vampires, which was shortlisted for a British Fantasy Award. Tim’s short fiction has appeared in Interzone, Not One of Us, Shoreline of Infinity and numerous anthologies, including Best of British Science Fiction, Best of British Fantasy and The Best Horror of the Year. He tweets @onasteamer.
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