12 Festive Locked-Room Mysteries Set In Wintery Mansions

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“Sometimes solitude is the only way to regain your sanity.”

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There’s something deliciously irresistible about locked-room mysteries set during winter. When the snow is falling, the fire is spitting, a grand mansion becomes cut off from the world outside, every secret feels sharper – and every suspect more dangerous. Festive mystery books lean perfectly into this mood, combining classic whodunit puzzles with icy settings, holiday tension, and a chilling sense of claustrophobia. From winter mystery books inspired by Golden Age traditions to Christmas locked-room mysteries set in sprawling country houses, these stories thrive on isolation. Whether you’re drawn to cosy winter mysteries or intricate puzzle plots, mansion-set mysteries offer the ultimate seasonal escape. So, if you’re craving festive locked-room mysteries filled with snow, secrets, and sinister twists, these wintery whodunits are the perfect places to start. 

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An English Murder – Cyril Hare

We’re kicking off our list of the best festive mystery books with one of the all-time classic locked-room crime thrillers set during winter, Cyril Hare’s An English Murder. Warbeck Hall is an old-fashioned English country house and the scene of equally English murders. 

All the classic ingredients are there: Christmas decorations, tea and cake, a faithful butler, a foreigner, snow falling and an interesting cast of characters all thrown together. The murders and detective work are far, far from conventional, however…

The Hunting Party – Lucy Foley

Still one of our favourite Lucy Foley books, The Hunting Party is set during the languid days of the Christmas break, where a group of thirtysomething friends from Oxford meet in the New Year together, a tradition they began as students a decade ago. For this vacation, they’ve chosen an idyllic and isolated estate in the Scottish Highlands – the perfect place for getting away and unwinding by themselves. 

The trip begins innocently enough: admiring the stunning if foreboding scenery, champagne in front of a crackling fire, and reminiscing about the past. But after a decade, the weight of secret resentments has grown too heavy for the group’s tenuous nostalgia to bear. Now, on New Year’s Day, one of them is dead. And another of them did it. 

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Murder At Mistletoe Manor – Holly Tierney

Klarinda Snow is the innkeeper of a beautiful, historic bed and breakfast in Windy Pines, Idaho. Guests come to Mistletoe Manor to escape from their troubles while enjoying the scenic mountain town. When all seven rooms of the inn get booked for a Tuesday night in December, Klarinda is excited about having so much business, and more than a little confused by it. After all, her inn normally isn’t exactly a destination hotspot. 

The guests have barely settled in before strange events start happening. Is this the most accident-prone group of travellers ever, or is someone out there out for revenge in this cosy holiday mystery? 

One By One – Ruth Ware

Getting snowed in at a beautiful, rustic mountain chalet doesn’t sound like the worst problem in the world, especially when there’s a breathtaking vista, a cosy fire, and company to keep you warm. But what happens when that company is eight of your coworkers… and you can’t trust any of them? 

When an off-site company retreat meant to promote mindfulness and collaboration goes utterly wrong when an avalanche hits, the corporate food chain becomes irrelevant, and survival trumps togetherness. Come Monday morning, how many members short will the team be? Ruth Ware’s One by One is another suspenseful thriller set on a snow-covered mountain, perfect for anyone looking for their next chilly festive mystery.

Mistletoe And Murder – Robin Stevens

Daisy Wells and Hazel Wong are spending the Christmas holidays in snowy Cambridge. Hazel has high hopes of its beautiful spires, cosy libraries, and inviting tea-rooms – but there is a danger swirling in the dark stairwells of ancient Maudlin College. 

Two days before Christmas, there is a terrible accident. At least, it appears to be an accident – until the Detective Society looks a little closer and realises a murder has taken place. Faced with several irritating grown-ups and fierce competition from a rival agency, they must use all their cunning and courage to find the killer (before Christmas Day, of course). 

The Santa Klaus Murder – Mavis Doriel Hay

In 1936, Mavis Doriel Hay wrote The Santa Klaus Murder and etched herself into the annals of the Golden Age of traditional mysteries. A classic country-house murder mystery, The Santa Klaus Murder opens with Aunt Mildred declaring that no good could come of the Melbury family Christmas gathering at their residence, Flaxmere. 

So when Sir Osmond Melbury, the family patriarch, is found by a guest dressed as Santa Klaus – with a bullet in his head on Christmas Day, the festivities are plunged into chaos. Nearly every member of the party stands to reap some sort of benefit from Sir Osmond’s death, but Santa Klaus, the one person who seems to have every opportunity to fire the shot, has no apparent motive. 

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Shiver – Allie Reynolds

When Milla is invited to a reunion in the French Alps resort that saw the peak of her snowboarding career, she drops everything to go. While she would rather forget the events of that winter, the invitation comes from Curtis, the one person she can’t seem to let go. 

The five friends haven’t seen each other for ten years, since the disappearance of the beautiful and enigmatic Saskia. But when an icebreaker game turns menacing, they realise they don’t know who has really gathered them there and how far they will go to find the truth. In a deserted lodge high up a mountain, the secrets of the past are about to come to light. 

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Check Out Our Shiver Book Review 

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Three Blind Mice – Agatha Christie

Another one of the best classic festive mystery books, Agatha Christie is renowned for her chilly locked-room mysteries, and Three Blind Mice still stands as one of her finest works. The patrons and residents of the newly-opened guesthouse, Monkswell Manor, find themselves trapped by a snowstorm and threatened by a psychotic killer. 

With a finite cast of characters in this locked-room mystery, it isn’t long before suspicions are voiced, and under growing pressure, even newlyweds Molly and Giles start to suspect that even one of them of potentially being the killer. 

An Unwanted Guest – Shari Lapena

It’s winter in the Catskills, and Mitchell’s Inn, nestled deep in the woods, is the perfect setting for a relaxing – potentially even romantic – weekend away. It boasts spacious old rooms with huge wood-burning fireplaces, a well-stocked wine cellar, opportunities for cross-country skiing, or just curling up with a good murder mystery. 

So, when the weather takes a turn for the worse, and a blizzard cuts off the electricity – and all contact with the world outside – the guests try to settle in and make the best of it. Soon, though, one of the guests turns up dead. And when a second one joins them, the survivors realise this was no accident. Within the snowed-in paradise, someone is picking the guests off one at a time. And there’s nothing they can do but hunker down and hope they can survive the storm – and each other. 

Peril In Paperback – Kate Carlisle

Rare books and antiquities expert Brooklyn Wainwright is thrilled to be invited to the fiftieth birthday party of her neighbour, Suzie’s aunt Grace. A retired founder of a major video game corporation, Grace is a larger-than-life character who’s turned her Lake Tahoe mansion into a full house, full of everything from pinball machines and giant props to secret passageways and trap doors. Brooklyn is most excited to catalogue Grace’s extensive collection of rare paperback pulp fiction. 

Part of the fun involves a seance, but after the lights flicker, one guest is dead, poisoned by a cocktail intended for Grace. It seems someone is determined to turn Grace’s playful palatial estate into a house of horrors. Brooklyn suspects the key to the killer’s identity may lie in the roman à clef Grace has written about her life. With Grace in great peril, “must-read” takes another meaning as Brooklyn tries to stop a murderer who’s through playing around…

Another Little Christmas Murder – Lorna Nicholl Morgan

When Dilys Hughes finds herself snowbound in the middle of a bleak and lonely stretch of Yorkshire, she has no option but to accept help from passing motorist Inigo Brown, who is on his way to visit his uncle. 

Arriving at his uncle’s remote country house, Wintry Wold, the couple encounters a less-than-warm welcome from Inigo’s new young aunt, Theresa. Why is she reluctant to let Inigo see his uncle, and is he really as ill as he’s been told? As the snowstorm brings more stranded strangers to the door, Dilys starts to realise that all is not as it seems at Wintry Wold. When the morning brings news of the death of Inigo’s uncle, Dilys sets out to investigate – was it a natural death, or was it murder? 

Dead Of Winter – Darcy Coates

When Christa joins a tour group heading deep into the snowy expanse of the Rocky Mountains, she’s hopeful this will be her chance to put the ghosts of her past to rest. But when a bitterly cold snowstorm sweeps the region, the small group is forced to take refuge in an abandoned hunting cabin. Despite the uncomfortably claustrophobic quarters and rapidly dropping temperature, Christa believes they’ll be safe as they wait out the storm. 

But, deep in the night, their tour guide goes missing. He’s found the next morning, with his severed head impaled on a tree outside the cabin. Terrified and completely isolated by the storm, Christa finds herself trapped with eight total strangers. One of them kills for sport, and they’re far from finished. As the storm grows more dangerous and the number of survivors dwindles, Christa must choose who she can trust before this frozen mountain becomes her tomb in Darcy Coates’ festive mystery novel, Dead of Winter.