Free Thriller books for Amazon Kindle Daily

Thriller

The Adulterer Thriller Series

The Adulterer's Handbook (The Adulterer Book 1) FREE by Sam Anthony: The Adulterer’s Handbook is a darkly comic guide to temptation, misjudgement, and marital self-sabotage. Witty, sharp, and unapologetically uncomfortable, it explores why sensible people make terrible decisions—and why they keep doing it anyway. A brutally funny look at desire, denial, and the mess we make of our own lives.

This book is Free on February 16, 2026

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Other Books in the series

The Adulterer's Confession: A Novel (The Adulterer Series Book 2)

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Smart-Mouthed Sleuths and Deadly Skills: Free Mystery eBooks

The Alvarez Family Murder Mysteries (Books 1-7) FREE by Heather Haven: This set is for cozy readers who can't get enough of a smart-mouthed woman sleuth out to please her never-had-a-bad-hair-day mother, computer-genius brother, gourmet chef uncle, and energetic orange and white cat, Tugger. Now you can get all seven with one click!

This book is Free on February 16, 2026

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Break The Rules (Trespassing Book 11) FREE by P.W. Creighton: While Devin is busy competing, Logan and their friends are busy with their own project. An unexpected ally has given them a list of targets who have participated in the extortion parties. When Devin finds that one of the team has been receiving messages from a secret admirer, messages that have now turned threatening, they need to change their plan.

This book is Free on February 16, 2026

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New York Minute: The Green Berets (Will Kane Book 1) FREE by Bob Mayer: Jack Reacher meets the Equalizer. New York City, 1977. Will Kane, a former Green Beret, faces his own demons and evil on the streets of a city on the edge. How far can a good man get pushed? Who has the deadly skills to stand up against evil? Written by a NYT Bestselling author and former Green Beret.

This book is Free on February 16, 2026

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The Irish End Games Box Set (Books 1-3) FREE by Susan Kiernan-Lewis: A fun family vacation turns into an apocalyptic nightmare when a couple and their young son find themselves trapped in the Irish countryside during an international crisis with all contact outside the country gone, no electricity or motor vehicles, and desperate bands of outlaws roaming the Emerald Isle. Includes books 1–3.

This book is Free on February 16, 2026

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A Killer's Scent FREE by L. M. Rapp: Blade Runner meets The Silence of the Lambs – a darkly sensual and psychologically charged dystopian thriller that explores identity, desire, and the blurred lines that distinguish man from beast. Perfect for fans of Richard K. Morgan and Eliza Clark.

This book is Free on February 16, 2026

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The Girl in the Hollow FREE by J S. Donovan: Two innocents vanish. A town turns on its own. When a missing child case shatters a quiet rural community, the only detective capable of finding the truth becomes the prime suspect. To save them, she must expose a secret the town would kill to keep.

This book is Free on February 16, 2026

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Tales of the Sea Thriller Series

Cold Truth (Tales of the Sea Book 1) FREE by Richard Woodman: Woodman's first book in the series is a chilling journey into the darkness of the Arctic seas. After the carnage of World War I, Merchant naval officer Edward Adams embarks on a strange voyage to discover the fate of a lost Swedish polar expedition. But the expedition fails to achieve anything, and the details of what happened remain a mystery.

This book is Free on February 15, 2026

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Other Books in the series

The Judgement of his Peers (Tales of the Sea Book 2)

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An Absence of Imagination: A Tale of the China coast (Tales of the Sea Book 3)

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Magnetic Anomaly (Tales of the Sea Book 4)

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Unintended Consequences (Tales of the Sea Book 5)

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The Petrel's Cry (Tales of the Sea Book 6)

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Cryptic Phrases and Dangerous Choices: Free Mystery eBooks

New York Cheesecake Chaos (Murder In The Mix Book 8) FREE by Addison Moore: Fun Cozy Mystery! Murder in the Mix is a USA TODAY Bestselling Series! Humor with a side of homicide. Baker Lottie Lemon's ex has sailed into town. Lottie is catering an author event at the local library when she stumbles up both her ex and a body. Readers LOVE this cozy mystery series!

This book is Free on February 15, 2026

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Deuce Mora Mystery Series (Vol. 1-3) (The Deuce Mora Series Book 6) FREE by Jean Heller: In award-winning (including two-time Pulitzer Prize finalist) journalist Jean Heller’s first action-packed mystery featuring the intrepid sleuth, Deuce learns in short order that if you mess with organized crime, you have to be tough—and you’d better be as much detective as reporter.

This book is Free on February 15, 2026

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Murder at the Route 66 Ranch Hotel (The Route 66 Ranch Hotel Mystery Series Book 1) FREE by N.C.L. SARNO: This year, Route 66 turns 100, and the USA turns 250! Enhance your celebrations by reading this Americana cozy mystery series set on Route 66 in Arizona. The rural hotel featured in this 7-book series always has something entertaining going on. Get the first book free today and... Get your kicks (but watch your back) on Route 66!

This book is Free on February 15, 2026

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The Empress Holds The Key (The Jack Rogan Mysteries Book 1) FREE by Gabriel Farago: A mysterious photo. A cryptic phrase. A deadly secret buried for centuries. Journalist Jack Rogan races from wartime Europe to ancient Egypt to uncover a conspiracy linking Nazi war crimes, lost relics, and the Knights Templar. A gripping historical thriller for fans of Dan Brown.

This book is Free on February 15, 2026

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The Adulterer's Legacy (The Adulterer Book 8) FREE by Sam Anthony: The Adulterer’s Legacy is a darkly comic thriller about desire, money, and self-deception. When a naïve teacher’s life changes overnight, temptation arrives in the form of secrets, seduction, and dangerous choices. A sharp, unsettling story where poor judgment blurs boundaries and consequences creep closer.

This book is Free on February 15, 2026

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EMP Cold Surge FREE by Colton Lively: When a mysterious blackout strands a luxury yacht at sea, nurse Lena must protect a young boy and lead a fractured crew with no power, no contact, and no idea what caused the silence. Supplies are running out, and someone is watching from the island.

This book is Free on February 15, 2026

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All The Beautiful Lies Thriller Series

All The Beautiful Lies (All The Beautiful Lies Series Book 1) FREE by J.S. Ellis: She was meant to cheat. He was meant to report back. No one planned for blood. Daryl becomes a high-class escort to cover his mother’s medical bills. When a wealthy husband hires him to seduce his wife, the job feels simple—until desire turns dangerous and Emma is attacked. What began as temptation may end far darker than divorce.

This book is Free on February 14, 2026

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Other Books in the series

All The Beautiful Secrets : A gripping, addictive psychological thiller (All the beautfuil lies series Book 2)

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All The Beautiful Truths : A Gripping, Addictive Psychological Thiller (All The Beautiful Lies Series Book 3)

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Deadly Conspiracies and Missing Books: Free Mystery eBooks

Lake Effect Murder FREE by Lakota Grace: What Rán Hollander discovers when she returns home for her father's funeral is not a tragic boating accident, but rather a murder. And the local police won't investigate. To avenge her father's death, Rán goes undercover, only to find out life on the run is much more complicated than it seems. Can she catch the murderer before he strikes again?

This book is Free on February 14, 2026

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Stolen Book Shuttered Library FREE by Stewart Buettner: A suspicious note found in place of a stolen book sends downsized reporter Marvin MickleThwait running to librarian Gloria Thanh. The pair dives into the library’s mysterious underground stacks, where they find a code hidden behind library call numbers. And that code leads them to a conspiracy to eliminate the library and Marvin and Gloria with it.

This book is Free on February 14, 2026

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Four Doubt (Silas McKay Suspense Series Book 4) FREE by Luana Ehrlich: When Silas agrees to investigate the murder of a cybersecurity executive, he discovers there are two suspects, but as he chases down the leads on both, he suddenly discovers the real killer, someone who’s been hiding in plain sight, someone who plans to kill again. Only Silas stands in his way...but for how long?

This book is Free on February 14, 2026

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The Mercury Mirror (The Hinge Points Book 1) FREE by Lynn Lyon: Archaeologist Celeste Marín spent her career dismissing her grandmother’s "crazy" stories about singing stones. Then she touched the mercury mirror. Now, she can hear an ancient network connecting the globe, and a deadly conspiracy is closing in. From Mexico to the world's most sacred sites, the hunt is on. Grab this gripping series starter!

This book is Free on February 14, 2026

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Tune Up (Detective Qigiq Book 2) FREE by Joe Klingler: Two seemingly unconnected incidents—a missing lawyer and an elderly hit-and-run victim—lead Qigiq and Kandy to a vintage motorcycle café, a million-dollar yacht, a cliffside confrontation, and a musician named Mylin. Young. Attractive. And illegal. "a high-octane exercise ...that will have you turning pages at fever pitch” - Pacific Book Review.

This book is Free on February 14, 2026

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No Time to Forget: When Memory Becomes a Product (The Breaking Point Series Book 2) FREE by Richard Fenton: ClearMind Industries can erase pain and rewrite memory. For some, it brings peace. For others, violence, control, and disappearance. Fourteen connected stories reveal a world where healing is weaponized—and forgetting has a cost.

This book is Free on February 14, 2026

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The Polaroid Murders (Tobias Reddick Book 1) FREE by James R. Baldwin: A serial killer turns death into art. Tobias Reddick hears the echoes. This is fast-paced, edge-of-your-seat action—so gripping you won’t want to put it down. Each murder scene is a masterpiece—ritualistic, haunting, and marked by a single Polaroid. Tobias Reddick, a former investigator with a rare sensitivity to emotional imprints, is pulled into a case that mirrors his own buried trauma.

This book is Free on February 14, 2026

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Cunning Killers and Hidden Memories: Free Mystery eBooks

Secrets by Starlight (Moon Garden Mysteries Book 1) FREE by J.R. Pearse Nelson: This inheritance is more than I bargained for. Starting with Nanna's naughty cat. When his antics unravel a secret hidden in the woods behind Covett House, my new life changes. But discovering midlife magic has made me bold. Or maybe that’s all the strong coffee I’m currently running on. Either way, I’ll make a better life with this second chance.

This book is Free on February 13, 2026

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Portrait of a Dead Guy (A Cherry Tucker Mystery Book 1) FREE by Larissa Reinhart: Sassy portrait artist Cherry Tucker takes on her first high-stakes commission: a coffin portrait for a murdered son. Perfect for fans of humorous, Southern cozy mysteries with a strong female lead and down-home charm. A fun start to an award-winning and Wall Street Journal bestselling series. “Laugh-out-loud funny and as Southern as sweet tea.”

This book is Free on February 13, 2026

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Dying to Date FREE by Sharmyn McGraw: As FBI Agent Jakes hunts a cunning serial killer, keeping relationship coach Kristina Truly from becoming the next target is critical to solving the case. Thrown together as unlikely allies, danger closes in as clues lead to more dead ends—until the killer moves in and Kristina’s gone. Will Jakes get to her in time? You’ll need to read it to see.

This book is Free on February 13, 2026

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The Ghost in Roomette Four (Jill McLeod California Zephyr Series Book 3) FREE by Janet Dawson: Zephyrette Jill McLeod tells herself that shimmering light in the Pullman car couldn’t possibly be a ghost. A porter tells her he, too, has seen the spectre. It must have something to do with that body Jill found two months ago, in roomette four. The young man’s death was supposedly due to natural causes. BUT THE UNQUIET SPIRIT IS POINTING TO MURDER.

This book is Free on February 13, 2026

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The Weight of Guilt (An Annie Collins Mystery Book 5) FREE by Helen Starbuck: A client charged with murder, paired with an overprotective uncle who expects an acquittal, leaves Angel Cisneros wondering whether a guilty verdict will cost him his job if his PI wife, Annie Collins, can’t find evidence of Mia Stewart’s innocence. The case drags Annie back into the OR and its complicated web of conflict to find the answers.

This book is Free on February 13, 2026

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Mango Star FREE by Bill H Myers: When Walker and his bobtail cat, Mango Bob, pull into a quiet Florida campground, they meet a terrified A-list actress on the run from a jealous husband and his cult enforcers. Add in an FBI seductress, a body double, and a bear-filled campground, and you get a fast, funny, and delightfully unhinged Florida RV adventure where trouble is inevitable.

This book is Free on February 13, 2026

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Helix Rising (The McCollister Files Book 1) FREE by J.L. Calder: Every conspiracy starts somewhere. Follow Tony "AJ" McCollister’s dangerous transformation from obedient Navy officer to the shadow operative who will one day alter the fate of the nation. From Navy intelligence to the political war rooms of Washington, Tony learns he's better at engineering outcomes than following orders.

This book is Free on February 13, 2026

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Bear Trap (A Jon Smith Novel Book 1) FREE by Bob Asher: Ruthless Russian Spetsnaz have invaded Alaska to snatch a KGB defector. Fortunately, CIA Paramilitary Officer Jon Smith has just arrived in Homer for a well-deserved vacation. The Pentagon scrambles to assemble an ad hoc rescue team for a possible suicide mission. Can Smith’s ragtag group of Red Shirts save the defector before time runs out?

This book is Free on February 13, 2026

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The Madness She Knew: A Psychological Paranormal Thriller of Twisted Family Secrets FREE by DJ Adamson: New by D. J. Adamson- Lillian Dove Mysteries and Into the Storm. Some memories stay hidden for a reason— Willow Harris swore she’d never return to Paradise, but when her aunt is found dead, and another aunt goes missing-- lifetime running calls her home. The deeper she digs, the more questions who to blame: her aunts, her own denial, or Paradise.

This book is Free on February 13, 2026

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The Keeper of the Book FREE by Ryland Harris: In 2043, believing in anything comes with a death sentence. But retired special forces soldier, Michael Keane, will break every rule to rescue his loved ones from a tyrannical world government. An epic action story about courage, faith, and the power of a father’s love.

This book is Free on February 13, 2026

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Deadly Patterns and Global Intrigue: Free Mystery eBooks

Survival Line FREE by William Stone: At 7:02 PM on Valentine's Day, civilization stops. An EMP kills every screen, engine, and signal. As confusion hardens into violence, a man runs through a dying city to reach the woman he loves, while she arms herself and walks into the dark to find him first.