10 Best Mystery Books of the 2020s So Far

A good mystery makes you want the answer. A great one makes the people, places, and choices behind that answer matter just as much. The strongest mystery books of the 2020s have found room for both: intricate puzzles that reward attention and stories with enough emotional weight to survive their final reveal.

For a traditional whodunit with warmth and wit, start with Richard Osman’s The Thursday Murder Club. For a literary missing-person mystery, try Liz Moore’s The God of the Woods. And if you want an investigation that takes the genre somewhere unfamiliar, Robert Jackson Bennett’s The Tainted Cup combines detective work with an extraordinary fantasy setting.

Here are ten of the best mystery books of the decade so far, with a choice for several different reading moods.

Scope: “the decade” means the 2020s. This editorial selection considers books published from January 2020 through October 2026; the ten selections below first appeared between 2020 and 2024. It is a curated reading list, not a sales ranking or a claim of universal agreement. The emphasis is on distinctive investigations, memorable characters, and the range of modern mystery fiction. Some selections cross into crime thrillers and noir. No major solutions are revealed.

Disclosure: As an Amazon Associate, I earn from qualifying purchases. This article contains affiliate links.

The Best Mystery Books of the Decade at a Glance

Years refer to first publication, which can differ from the date of a particular US edition. The order offers a route through the selections rather than a numerical ranking.

1. The Thursday Murder Club by Richard Osman

Four residents of an English retirement village meet to discuss unsolved murders. When a real killing brings a new investigation close to home, their hobby becomes considerably more demanding.

The setup offers plenty of comedy, but the novel’s appeal reaches beyond the novelty of its amateur detectives. Elizabeth, Joyce, Ibrahim, and Ron have accumulated skills, regrets, and experiences that younger people can easily overlook. Osman makes those histories part of how they observe the world and pursue a case.

This earns its place because the pleasure comes from both the investigation and the company. Its humor makes an inviting entrance to a story that also has room for loneliness, grief, and friendship.

Best for: Readers who want an accessible whodunit with humor and emotional depth. This is the first Thursday Murder Club novel.

Affiliate text: Meet the sleuths at Coopers Chase in The Thursday Murder Club on Amazon.

2. The God of the Woods by Liz Moore

In 1975, Barbara Van Laar disappears from an Adirondack summer camp. Her family owns the camp, and her disappearance carries an unsettling echo: her brother vanished years earlier.

Moore uses the search to move between people whose connections to the Van Laars are shaped by money, work, loyalty, and resentment. As perspectives and timelines shift, the mystery becomes a study of whose account gets believed and whose life can be pushed aside.

Its distinction is the way the setting and social world deepen the investigation. The woods provide isolation, but the family’s influence creates pressures of its own. This is a strong choice when you want a missing-person story with the scope of a family novel.

Best for: Readers who enjoy layered timelines, literary suspense, and secrets that span generations.

Affiliate text: Explore the Van Laar family’s secrets in The God of the Woods on Amazon.

3. The Tainted Cup by Robert Jackson Bennett

A man dies after a tree erupts from his body. In Bennett’s biologically altered empire, that bizarre death becomes a case for investigator Ana Dolabra and her assistant, Dinios Kol.

Fantasy creates a particular challenge for a mystery: readers need to understand enough of the world to follow the evidence. Bennett makes its strange biology central to the investigation, giving the detectives practical questions to answer even as the setting expands around them.

Ana’s unconventional methods and Din’s perspective give the story a compelling detective partnership. The book belongs here because its imaginative world serves the mystery rather than simply providing scenery. It offers a fresh way into a familiar pleasure: watching an investigator recognize connections everyone else has missed.

I rated The Tainted Cup 4.5 out of 5 stars, and it is a particularly good fit for readers who share my love of fantasy but also want a satisfying investigation.

Read our The Tainted Cup review for a closer look. For more crossover recommendations, explore these murder mysteries set in fantasy worlds.

Best for: Fantasy fans and readers looking for an unusual detective duo. Start here with the first Shadow of the Leviathan novel.

Affiliate text: Follow Ana and Din’s first investigation in The Tainted Cup on Amazon.

4. All the Sinners Bleed by S. A. Cosby

Titus Crown, the first Black sheriff of Charon County, Virginia, faces a school shooting whose aftermath exposes a much wider investigation. As he pursues the truth, he must also navigate the prejudices and competing demands of the community he serves.

Cosby connects the mechanics of a criminal investigation to questions about authority and responsibility. Titus has to assess evidence while confronting what people expect a sheriff to defend, ignore, or conceal.

This is one of the list’s darkest selections. Its place rests on the combination of an urgent investigation and a protagonist whose professional decisions carry personal and public consequences. The case is disturbing, and the pressure around it gives the novel much of its force.

Best for: Readers who want a serious crime novel with a strong investigative core. Expect graphic violence, racism, and disturbing material involving children.

Affiliate text: Follow Titus Crown’s investigation in All the Sinners Bleed on Amazon.

5. The Appeal by Janice Hallett

A community theater group rallies around a fundraising appeal for a child’s medical treatment. Through emails, messages, and other documents, a more troubling picture begins to emerge.

Hallett turns the reader into an investigator. You have to notice discrepancies, judge relationships, and decide what seemingly ordinary correspondence might be leaving out. A message’s timing or its recipient can matter as much as its contents.

The format earns its place because it changes how you read. Instead of following a detective from clue to clue, you assemble an understanding of a community from what its members choose to write. It particularly suits readers who enjoy pausing to test their own theory.

Best for: Puzzle lovers who enjoy documentary storytelling and keeping track of a large cast.

Affiliate text: Examine the evidence for yourself in The Appeal on Amazon.

6. Moonflower Murders by Anthony Horowitz

Former editor Susan Ryeland is drawn into a disappearance connected to an earlier hotel murder. A novel by the late Alan Conway may contain the clue she needs, making the act of reading part of the investigation.

Horowitz builds a mystery around another mystery, inviting readers to compare the fictional case with the events surrounding Susan. That structure offers more than an extra set of suspects: it makes the relationship between a writer’s inventions and their real-life material a source of suspense.

This is the selection for readers who want an elaborate construction. Its appeal lies in holding multiple possibilities in mind and watching apparently separate details acquire new significance.

Best for: Traditional whodunit fans who enjoy close reading and layered plotting. This is the second Susan Ryeland novel; beginning with the first gives her story more context.

Affiliate text: Untangle Susan Ryeland’s layered case in Moonflower Murders on Amazon.

7. The Searcher by Tana French

Retired Chicago detective Cal Hooper moves to rural Ireland hoping for a quieter life. When a local teenager asks him to investigate a missing brother, he discovers how difficult it can be to understand a community from the outside.

French lets the mystery develop through conversations, routines, and the gradual testing of trust. Cal’s investigative experience helps him, but it does not mean he understands the local rules or the consequences of breaking them.

The novel earns its place through atmosphere and moral tension. Its central question extends beyond what happened to the missing person: Cal must work out what kind of responsibility he has accepted by agreeing to look. Give this one time to establish its rhythms.

Best for: Readers who value character, landscape, and difficult choices over rapid twists. It begins the Cal Hooper sequence.

Affiliate text: Step into Tana French’s rural Irish mystery with The Searcher on Amazon.

8. Everyone in My Family Has Killed Someone by Benjamin Stevenson

A family reunion at a mountain resort is an unpromising occasion even before a body appears. Narrator Ernest Cunningham introduces his relatives with an extraordinary claim: every member of the family has killed someone.

Stevenson uses Ernest’s knowledge of mystery-writing conventions to play with the reader’s expectations. The narration draws attention to clues and storytelling choices, turning the relationship between narrator and audience into part of the entertainment.

This belongs on the list for readers who enjoy a mystery that openly discusses its own construction. The humor and family friction give it energy, while the premise encourages you to question the meaning of statements that initially seem straightforward.

If you enjoy an isolated cast of suspects, our closed-circle mystery guide explains the appeal of that setup.

Best for: Readers who like witty narration, family dysfunction, and playful puzzle construction. First published in Australia in 2022; the US edition followed in 2023.

Get acquainted with the Cunningham family in Everyone in My Family Has Killed Someone on Amazon.

9. The Devil and the Dark Water by Stuart Turton

In 1634, a ship leaves Batavia for Amsterdam carrying a famous detective as a prisoner. Strange occurrences and threats of disaster raise the possibility that something supernatural is aboard.

Turton uses the voyage to create a confined world governed by rank, suspicion, and fear. With the celebrated investigator imprisoned, others must try to understand events while navigating the dangers of the ship itself.

Its place on this list comes from the atmosphere surrounding the puzzle. The sea closes off escape, rumors distort judgment, and every apparent explanation has to compete with the passengers’ growing dread. The historical adventure elements make it a distinctive choice for readers seeking a large, immersive mystery.

Best for: Readers who enjoy maritime settings, intricate plots, and ominous atmosphere. Expect violence and darker material.

Board Turton’s troubled voyage in The Devil and the Dark Water on Amazon.

10. Razorblade Tears by S. A. Cosby

Two fathers, one Black and one white, join forces after their married sons are murdered. Their search for the killers confronts them with criminal dangers and the prejudices that damaged their relationships with their children.

This is the list’s clearest crime-thriller crossover. Action and revenge drive the narrative, but the search also forces its protagonists to face losses they can never repair.

It earns a place because its emotional stakes are inseparable from its momentum. The fathers want answers, yet those answers cannot give them another chance to treat their sons differently. Choose it when you want a fast, forceful crime story with grief and regret at its center.

Best for: Readers who enjoy intense, character-driven crime fiction. Expect graphic violence, homophobia, racism, and strong language.

Follow the fathers’ search for answers in Razorblade Tears on Amazon.

Which Mystery Should You Read First?

For an inviting introduction, choose The Thursday Murder Club. Its humor and amateur sleuths make it an easy entry point, especially if you want a mystery with warmth.

Choose The Appeal if solving the case yourself is the main attraction. Pick The God of the Woods for a layered family story, or The Searcher for a slower investigation grounded in place and character.

For fantasy readers, The Tainted Cup offers the strongest crossover. If you prefer darker crime fiction, All the Sinners Bleed provides the more conventional investigation, while Razorblade Tears supplies the faster, more violent pursuit.

Which mystery published in the 2020s would you add to this list?

Follow us on Instagram and Facebook