It's certainly true to say that readers who enjoy tension, plot twists, and clever investigations read mysteries. No matter whether you're after a traditional whodunit or a psych thriller, a detective story, or just a page turner for 2026, there really is something for everyone. From old classics to newer additions, it's impossible to put any of the following books down.

The Best Mystery Novels to Read in 2026

No matter the genre, the top mystery thriller books of 2026 should have an interesting storyline, believable characters, and clues that encourage you to figure out the solution to the crime yourself.

1. And Then There Were None by Agatha Christie

Regarded by many as the greatest murder mystery novel of all time. It tells the story of 10 strangers who each receive an invitation to a secluded island, where each is murdered one by one in their own way. Tension builds with each chapter that follows until the incredibly shocking ending.

If you like a whodunit, then this murder mystery novel is one of the most exciting murder mystery books for adults out there today, and so one to take note of. Everything means something; every word has a purpose.

2. Murder on the Orient Express by Agatha Christie

When a rich American businessman dies on a luxury train stranded in a snow-filled Yugoslavian mountain range, everybody on board becomes a potential killer, and through Hercules Poirot's interviews, all the characters' histories come out.

This is one of the best ever mystery novels of Agatha Christie with superb plotting and a perfect climax.

3. The Girl on the Train by Paula Hawkins

The story follows a woman commuting on a train every day who witnesses the same couple with the same relationship. She then becomes embroiled in an investigation surrounding the mysterious disappearance of the woman she sees.

The most important psychological thriller novels are those with unreliable narrators and a gripping atmosphere. This book succeeds.

4. Gone Girl by Gillian Flynn

The disappearance of a wife and the problems it causes her troubled husband is a truly sensational, twisty read that has taken recent crime fiction by storm. The characters are not who you expect them to be, and your view of them constantly changes.

Anyone who wants one of the best psychological thrillers to read could definitely start with this one.

Favorite Detective Fiction Series to Read

A lot of readers enjoy continuing the adventures of the same investigator throughout more than one book, and the best series are those with interesting detectives.

1. Sherlock Holmes Series by Arthur Conan Doyle

No one has done more for detective fiction than Sherlock Holmes. With his powers of deduction and sharp observations, he has been investigating the baffling crimes of Victorian London since 1887.

The Sherlock Holmes series is still considered one of the most esteemed detective fiction series around.

2. Inspector Rebus Series by Ian Rankin

This popular modern crime series is set mostly in Edinburgh, where Detective John Rebus is working his way through cases ranging from murder and blackmail to corruption and terrorism.

If readers want to find some popular detective fiction series, Rebus would be a good place to start.

3. Harry Bosch Series by Michael Connelly

A hardboiled, world-weary but compassionate detective, Harry Bosch investigates the darkest corners of Los Angeles. The series features strong cases as well as well-developed characters to enjoy.

This has become one of the leading detective fiction series available to buy.

New Mystery Novels by Women Writers to Consider

Women have always produced fantastic mystery novels, and 2026 sees more fantastic crime fiction to look forward to.

1. None of This Is True by Lisa Jewell

A gripping psychological suspense novel where a woman meets another woman at a birthday party and their lives become intertwined through a disturbing twist of fate.

This is one of the must-read new mystery novels by female authors with a really well-crafted story.

2. The It Girl by Ruth Ware

This book follows the life of a university student who returns to her alma mater years after a former roommate's murder. The whodunit unravels as the protagonist tries to understand whether her old roommate actually was guilty.

Readers of new mystery books by female authors rate The It Girl very highly.

3. Bright Young Women by Jessica Knoll

Based on a true story, this book is about the women who were victims of one of history's most infamous serial killers and the impact of his crimes on their lives and on the people around them.

An exceptional read and definitely one of the best new mystery books for women that readers should add to the top of their lists.

Top Psychological Thriller Books to Read in 2026

Mystery thriller book readers who have been searching for the top books have come to the right place to satisfy their desire for stories that contain the perfect mystery plot and suspense that never lets down, but all surprising twists and turns.

1. The Thursday Murder Club by Richard Osman

A team of elderly residents in a retirement village decides to solve murders happening in their area themselves and continues to baffle and outwit both the criminals and the police!

This has earned its place as a popular choice when picking the best mystery thrillers of 2026 to read.

2. The Silent Patient by Alex Michaelides

A woman shoots her husband dead and then refuses to speak. Five years later, a psychotherapist sets out to discover her motive and the story of the day of the murder.

The unexpected twist at the end of the book made it one of the top mystery thrillers of 2026.

3. Magpie Murders by Anthony Horowitz

In this meta mystery, the reader follows a real author and the novel she is working on about a traditional whodunit. The only trouble is, the story contained within the story is far from solved by its brilliant detective protagonist.

This is a traditional, hard-boiled murder mystery that would easily rank as one of the best mystery thrillers in 2026.

Why Mystery Novels Continue to Stay Popular

Mystery novels will always be popular with readers because they allow the reader to get involved in the mystery just as much as the detective in the book. While most of the other novels are based around actions, there is a different approach required for mystery novels, as the reader will need to think.

From best whodunits for adults to contemporary detective series and new mysteries by female authors, there is no shortage of excellent mystery books for 2026.

Conclusion

The best mystery novels of 2026 certainly do not disappoint. Whether you're interested in reading the best mystery books for adults, keeping up with popular detective fiction series, finding some good new mystery books by women, exploring the best whodunit novels for adults, or wanting the best psychological thriller novels to read, the choices are abundant.

Frequently Asked Questions (FAQs)

Which mystery novel is best suited to people new to the genre?

And Then There Were None is very much suited to people new to the genre-it is well-plotted, a suspenseful page-turner, and has a very striking conclusion. As the plot unfolds, a whole range of elements that make the genre beloved of generations is on display, though it is not overwhelming.

How does a mystery novel differ from a thriller?

In a mystery, it is the crime or puzzle to be solved that lies at the center of the novel, whereas the essence of a thriller is suspense and a sense of immediate danger. Often, a modern writer will employ elements of both genres, allowing the reader to enjoy both a puzzle and a race against time.

Is a series of detective books preferable to standalone mystery novels?

Each has its place: standalone novels can be satisfying self-contained stories; series, on the other hand, may allow readers to grow attached to individual characters.

Why are psychological thrillers so popular?

A psychological thriller may explore the human mind or our desires or even our fears; they offer the pleasure of suspense built up, of trying to work out just what is really going on as characters reveal only fragments of truth and often lie, or appear not to know themselves what is happening.

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