14 New Release Thriller Books You Need To Read In 2026

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“Normality, humanity – even boredom – creep back in at the most fraught of times”

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If you’re always on the search for your next gripping read, there’s no shortage of new release thriller books to add to your TBR. From twisty psychological thrillers and dark domestic mysteries to serial-killer stories and high-concept thrillers, 2026 has delivered plenty of books designed to keep you turning the pages. But with so many new thrillers being published each month, it’s tough knowing which ones are worth picking up. That’s where this list comes in. We’ve rounded up some of the best new thriller books of 2026, including novels that have already hit shelves and the anticipated releases you need to keep an eye out for. Whether you’re looking for an unpredictable plot or a mystery you won’t be able to solve, there should be something here for your next read. So, if you’re looking for your next thriller obsession, here are the new releases to know about. 

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Serenity Falls – C.J. Tudor

First up on our list of new release thriller books is the latest novel by one of our favourite authors, Serenity Falls by C.J. Tudor. Serenity Falls seems like the perfect relocation option for Dan and his daughter, Sadie, as they move from the UK. But their new idyll is shattered when they find a dead body in their swimming pool. And it turns out that this is just the start of a series of odd discoveries. 

As plans gear up to celebrate Serenity Falls’ fiftieth anniversary, something is stirring beneath the surface of this idyllic facade. Is Serenity Falls really the perfect town, or is it founded on something far darker? And is someone so desperate to keep its secrets that they’d resort to anything to preserve them? 

Release date: 10 September 2026

We Chase Shadows (We Solve Murders #2) – Richard Osman

At sunrise, high in the Italian hills, a body is found on the steps of a beautiful private villa. On the body is a threatening note, signed by a mystery man. Back at We Solve Murders HQ, Amy, Rosie, and Steve leap at the opportunity to take on their first proper case. So what if their new client seems to have his own reasons for avoiding the police? All they need to do is uncover who left the note, and then find them. Simple. 

But once they start digging, the suspects keep piling up: there’s Sweden’s most-wanted criminal, a canny ex-wife and a fierce business rival – yet the murderer keeps evading them. And as the trio chase a villain through the shadows, danger travels closer to home. Between Italy and Palm Springs, via Barcelona and Steve’s village pub, can the team catch an elusive killer who knows exactly where to hide? 

Release date: 1 September 2026

The Silent Appeal (The Appeal #2) – Janice Hallett

Welcome back to Lower Lockwood. The Fairway Players return with Sarah-Jane and Kevin MacDonald as committee co-chairs. This year, they have chosen to stage Agatha Christie’s The Hollow. As always, they’re short on men, and new Player Fran Elroy-Jones enlists a young married couple and the husband’s cousin to join. But no one wants to play the role of the hated Gerda, leaving Kevin and Sarah-Jane no option but to reach out to an old member they know would be happy to play any part.

As with any production, tensions soon run high, and our intrepid lawyers Femi and Charlotte are tasked with uncovering exactly what happened on the opening night of The Hollow – and whether the right person has ended up taking the fall. 

Release date: 25 August 2026

The Spy And The Snake (Mrs Spy #2) – M.J. Robotham

Maggie Flynn has finally earned her place at MI5 – but with promotion comes paperwork. With her daughter away at university and her spirited mother pursuing her own adventures, Maggie’s days in London are beginning to feel decidedly ordinary. So when the chance to return to the field arises, she doesn’t hesitate. 

The flight to Budapest and posing as the wife of a notorious British defector in order to smuggle him back to the UK should be straightforward enough. But Maggie Flynn has never done anything straightforward. As Cold War tensions simmer and shadows linger on every corner, Maggie finds herself navigating a city steeped in secrets – and drawn to a mysterious stranger who may endanger the mission… or steal her heart.

Release date: 7 July 2026

Heart Of Glass  – Jennifer Hillier

Seaside is a small coastal town, known originally for the local amusement park. But twenty-five years ago, a serial killer dubbed The Carnival Killer confessed to the murder of a local high school girl. Now, he’s recanted that confession. Barb, Nicolette, and Lorelei were best friends – then they met “Sam” at Wonderland. The night at the drive-in with the twenty-something was the last time Lorelei was seen alive, her murdered body surfacing a couple of days later in a local cranberry bog. 

With the amusement park set to reopen, revitalising the dying town of Seaside, the Carnival Killer recants his confession about killing Lorelei, the dead body of a young woman washes ashore, and the truth about what happened that night all those years ago threatens not only the carefully-constructed lives of Barb and Nicolette, but the very fabric of Seaside itself. 

Release date: 25 August 2026

The Secrets We Hide (North Falls #2)  – Karin Slaughter

1601 Iris Drive looks like any other house on a quiet, residential street. But rumours are rampant about the Vickery family and what goes on behind closed doors. When gunshots ring out, Sheriff Emmy Clifton and her sister, ex-federal agent Jude Archer, discover a devastating crime scene. 

Allison Vickery has been murdered in her own kitchen, and her teenage daughter is bleeding upstairs, left for dead. Everyone thinks they know what happened. But secrets are buried everywhere in this small town. And it’s up to Emmy Clifton to discover the truth. 

Release date: 11 August 2026

The Ending Writes Itself – Evelyn Clarke

Arthur Fletch, one of the world’s bestselling novelists, is a reclusive genius known for his iconic protagonists and fiendish twists. When six struggling authors are invited to spend a weekend on his private Scottish island, they arrive to discover a shocking secret: Arthur Fletch is dead, and his last book is unfinished. 

Desperate to publish the novel, Fletch’s agent and editor have summoned the writers in the hopes one of them will imagine a worthy ending for his final book. The only catch? The writers have just seventy-two hours to finish Fletch’s magnum opus. Starting is often the hardest part. But getting to the end could be murder. 

Release date: 7 April 2026

Whidbey – T Kira Madden

Birdie Chang didn’t know anything about Whidbey Island when she chose it, only that it was as far away as she could get from her own life. She’s a woman on the run – desperate to escape the headlines back home and from Calvin Boyer. But Birdie isn’t the only girl Calvin harmed all those years ago. Elsewhere, Calvin’s loving mother, Mary-Beth, receives a shocking phone call soon after Birdie arrives in Whidbey: her only son has been murdered. 

Calvin’s death sets into motion a series of events that sends three women on a desperate search for answers. A complex new whodunit thriller told from alternating points of view, Whidbey is a tense and provocative debut that has incited crucial questions about the pursuit of justice, and who has the real power over a story: the one who lives it, or the one who tells it?

Release date: 10 March 2026

Buyer Beware – Catherine Ryan Howard

When Ellie moves to 1 Delaney Row, she hopes to find a fresh start – a place where no one knows her name, her history, or her secrets. But what she doesn’t know is that her new home is already hiding someone else’s secrets – and the people determined to keep them are watching her. 

As Ellie starts to unravel the house’s disturbing backstory, coming closer to the shocking mystery at its heart, she unwittingly puts herself on a deadly collision course not only with her new home’s history, but with her own as well. A puzzle box of a thriller full of mind-boggling twists and turns, Buyer Beware is a new 2026 mystery novel exploring the dark secrets that any house can hold – and the lengths we’ll go to start over. 

Release date: 28 July 2026

The Unknown – Riley Sager

Struggling actress Marin Keane is shocked when she lands a role in a major motion picture about the unsolved mystery of New Avalon, an island on sprawling Lake Faraday, Vermont. She’s even more surprised when she learns that the role requires a weeklong research trip to that very spot. 

Not long after arriving, Marin and her castmates begin to realise all is not right with New Avalon. They hear strange noises in the night and notice mysterious symbols left behind by the island’s previous occupants. And after a sudden health emergency leaves Marin, Ronan, and the other actors stranded on the island, the disappearances begin again. As fear and suspicion mount, Marin must figure out what really happened on New Avalon, and how to keep the island’s terrible history from repeating itself.

Release date: 4 August 2026

Big Little Truths (Big Little Lies #2) – Liane Moriarty

After the principal of the high school receives a severed human finger in the mail, the local parents are in an uproar. But Madeline, Celeste, Jane, Renata, and Bonnie have other things to worry about. 

When a strange man begins lurking around the school asking supposedly innocent questions, this tightly connected group of women must finally face the full repercussions of the big little truths they have and haven’t shared with their kids. Because the stakes are now much higher than not being invited to an ice-skating show – and the ice has never been thinner for any of them. 

Release date: 25 August 2026

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Check Out The Best Mystery Thriller Books From Summer 2026

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The Witch – Freida McFadden

When Julia Barlow loses her job and her apartment, she has nowhere left to go but Pemberton, her family’s sprawling seventeenth-century estate in rural Massachusetts. Officially, she’s there to check in on her ageing grandmother. Unofficially, she’s hoping the old house will give her a place to disappear. Instead, Pemberton begins to unravel her. 

Every night, the grandfather clock stops at exactly 3:41 am. The lights flicker without warning. And a disembodied voice cries for help outside Julia’s bedroom door. As Julia digs into the house’s dark history, she uncovers the story of a woman executed for witchcraft in 1692 – and realises that the past may not be finished with Pemberton yet. When decades of family lies start to surface, Julia must confront a terrifying truth: Pemberton may be haunted by women whose voices refuse to stay silent.

Release date: 6 October 2026

Murder At The Grand Alpine Hotel – Lucy Foley

High in the Swiss Alps, accessible only by a single, winding railway, stands the luxurious Grand Alpine Hotel. With glorious mountain views and exclusive access to the powdery slopes, it draws guests from far and wide. 

But not everyone is here for a winter holiday. Beneath the champagne and furs, dark histories simmer; old grudges emerge like cracks in the ice. And someone is watching from the shadows. A polite, unassuming woman with an extraordinary mind: Miss Marple. When a body is found, and a blizzard cuts off all escape, only Miss Marple can connect the clues before the killer strikes again. Because it isn’t a question of who has a motive, but who’s next…

Release date: 22 September 2026

The French Illusion (The French Illusion #1) – John Grisham

After Paul and Chelsea Tanner’s fairytale wedding, their future is full of promise. But their honeymoon to Paris takes a dark, shocking turn when they are kidnapped while on a day trip to the French countryside. Who would target them, and why? 

It turns out this is not the first crime of its kind. The search for clues soon stretches across borders, with the FBI, CIA, and French Intelligence trying to work together to put the pieces of the puzzle together. Struggling to find answers, a young lawyer is recruited to be the bait in an elaborate CIA operation. Propulsive and surprising, The French Illusion is an unmistakable Grisham thrill ride – gripping and impossible to put down. 

Release date: 29 September 2026

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