Thriller

The Red White & Blue Land Thriller Series

Never Underestimate (Red White And Blue Land Book 1)

Never Underestimate (Red White And Blue Land Book 1) FREE by Richard Warburg: Greenland-Canada secession. National Guard in American streets. Coastal states quietly negotiating with Ottawa. When Never Underestimate was published in 2025, it read as fiction. Watching the news since has felt uncomfortably familiar. Book 1 of the Red White & Blue Land series — political thrillers that ask hard questions of every side.

This book is Free on May 5, 2026

Other Books in the series

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Hidden Daggers, Vanishing Senators, and Zero Indices: Free Mystery / Thriller eBooks

Murder At The Dog Show (An Unputdownable Lila Jennings Cozy Mystery Book 4)

Murder At The Dog Show (An Unputdownable Lila Jennings Cozy Mystery Book 4) FREE by Diane Scotland: When prize ribbons turn deadly, florist Lila Jennings is thrust into a high-stakes mystery at New York’s elite dog show. With evidence pointing her way, she must untangle secrets, outsmart a cunning killer, and clear her name before she becomes the next victim.

This book is Free on May 5, 2026

Cold Case No. 99-5219 (A Samantha Church Mystery Book 4)

Cold Case No. 99-5219 (A Samantha Church Mystery Book 4) FREE by Betta Ferrendelli: Determined reporter Samantha Church investigates the cold case murder of an abandoned infant, uncovering dangerous secrets and powerful adversaries.

This book is Free on May 5, 2026

Longstretch and Lavender (Wrenn Grayson Mystery Book 8)

Longstretch and Lavender (Wrenn Grayson Mystery Book 8) FREE by Connie Chappell: Foundling Museum archivist Wrenn Grayson unrolls a linen map dated 1879, laying out Summoner Park estate. That year, Thomas Longstretch lived on the estate, designing stained-glass windows, when an Aztec sacrificial dagger went missing. Wrenn concludes the images on the windows hint at the dagger’s location, but can she interpret them correctly?

This book is Free on May 5, 2026

The House of Closed Doors (Book 1)

The House of Closed Doors (Book 1) FREE by Jane Steen: Stubborn, heedless, disgraced: in 1870 Illinois, unwed Nell Lillington refuses to name the father of her child and is sent to a Poor Farm to give birth. First in a series that has delighted thousands of readers with its blend of saga and mystery.

This book is Free on May 5, 2026

Escape From Donetsk (A Jon Smith Novel Book 2)

Escape From Donetsk (A Jon Smith Novel Book 2) FREE by Bob Asher: CIA Paramilitary Officer Jon Smith’s goddaughter, Sister Joan, is trapped behind the Russian lines in Donetsk. Chechen soldiers have beaten her priest to death at their church. Jon and his loyal teammate, Angus, leave a trail of death and destruction in their wake as they race across Ukraine to retrieve her from the hellish war zone. (Book 2 of 4)

This book is Free on May 5, 2026

The Fix Is In

The Fix Is In FREE by DG Elliott: A covert mission goes wrong. A US senator vanishes. And the truth is buried before it can surface. US Navy Special Forces operator Frank Xavier soon learns the threat he faces on the streets of Kabul is nothing compared to his own government. THE FIX IS IN launches a thrilling new series where intel often fails—and the consequences are deadly.

This book is Free on May 5, 2026

The Back Channel (King's Lost Treasure Book 1)

The Back Channel (King's Lost Treasure Book 1) FREE by Andrew Anzur Clement: The lost gold of an Albanian ruler. A secret basement connecting powerful nations…And a bunch of carefree students swept up in a mission that will change everything. Welcome to the Back Channel. A new thriller from Amazon best-selling author Andrew Anzur Clement.

This book is Free on May 5, 2026

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Vanished Spouses, Hidden Lineages, and Corrupt Systems: Free Mystery / Thriller eBooks

Murder by the Seaside (Patience Price Mysteries Book 1)

Murder by the Seaside (Patience Price Mysteries Book 1) FREE by Julie Anne Lindsey: Downsized from the FBI’s human resources department on the Virginia mainland, Patience Price is setting up shop as a Counselor at Large in her quirky island town. And she’s making the best of her reinvention, until a high school boyfriend is accused of murder, and his determined mama wants Patience to save his hide.

This book is Free on May 4, 2026

A Question of Class (Detective Captain Fusco Mystery Cases Series Book 1)

A Question of Class (Detective Captain Fusco Mystery Cases Series Book 1) FREE by Maria Marotti: When a high-ranking university administrator is found strangled with a bike lock, suspicion immediately falls on his longtime nemesis–a fiery union leader with motive, history, and the key piece of evidence, her own chain. But detective Nick Fusco isn’t convinced. New to Southern California and still learning the rhythm of his sun-drenched precinct, Fusco trusts his intuition more than evidence.

This book is Free on May 4, 2026

Making Meredith

Making Meredith FREE by Andy Southall: Searching for your family tree? When amateur genealogist, Rob Banks, travels to the remote town of Meredith, England, to research his unknown grandfather he has no idea of the secrets he will uncover. Seventy years before, Robert Lachlan faces a dilemma that will hurt his descendants. Sometimes ancestry isn’t a story. Truth is a sting in the tale.

This book is Free on May 4, 2026

Here's to the Night (Trespassing Book 6)

Here's to the Night (Trespassing Book 6) FREE by P.W. Creighton: Someone has confessed to the murder of a high school star athlete, but a seemingly random accident has left the shooter critically injured, leaving Logan and Devin cleared of suspicion, but without answers. When they realize that other individuals involved with the murder and assaults have started to go missing, they are compelled to dig deeper.

This book is Free on May 4, 2026

Another Havana Hangover

Another Havana Hangover FREE by Randy Richardson: Eight years after Havana, Tanner Ford is pulled back into a deadly game of espionage. With a rogue mastermind weaponizing fear from Cuba, Tanner must outplay him, rescue a woman he once loved, and stop a plot that could ignite global chaos—before time runs out.

This book is Free on May 4, 2026

Guilty Money (Will Harper Florida Thrillers Book 2)

Guilty Money (Will Harper Florida Thrillers Book 2) FREE by David Crosby: Investigative journalist Will Harper thinks his story is about Florida’s prison problems, to put human faces on the troubling excess of the judicial system. It’s so much more… Join him as he uncovers the trail of dirty money with every deputy in the county trying to stop him. When the whole system is corrupt, there's no one you can trust.

This book is Free on May 4, 2026

The Launch (The Jamie Austen Thrillers Book 13)

The Launch (The Jamie Austen Thrillers Book 13) FREE by Terry Toler: READ WHAT STARTED THE JAMIE AUSTEN THRILLER FRANCHISE. #1 in Ten Different Countries. Jamie Austen is in college and has been looking for her father for two years. Adam Lang, Jamie’s father, has been looking for her ever since he learned he has a daughter. It's a race against time as a terrorist is between Jamie and her father.

This book is Free on May 4, 2026

The Unfinished Honeymoon

The Unfinished Honeymoon FREE by Johnny Moscato: Nick is determined to make it the perfect honeymoon, the one they’ve waited three years for. Then his wife disappears. And the nightmare he’s always seen in the world is no longer confined to his own head. A slow-burn psychological thriller about perception, uncertainty, and the terror of a mind you can't fully trust.

This book is Free on May 4, 2026

Back From the Dead (Detective Inspector Brian Brandon)

Back From the Dead (Detective Inspector Brian Brandon) FREE by André Spiteri: The award-nominated organised crime thriller that introduces the Strathburgh crime universe. A hapless accountant, a hardened gangster, and a conflicted detective's lives collide when the machinations of a mysterious figure force them to make impossible choices. How much will they be willing to give up for another chance at life?

This book is Free on May 4, 2026

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The Lighthouse Thriller Series

The Hidden Saboteur (The Lighthouse Book 1)

The Hidden Saboteur (The Lighthouse Book 1) FREE by Charles Besondy: Memories of the past tore Clay Austin apart and threatened to destroy the biggest deal of his career. Then he inherited a lighthouse, and life turned upside down. Buckle up for a roller coaster ride of twists and turns as two parallel stories of faith meet in a tense ending. This is Book One in The Lighthouse series, a 12-time award-winning series.

This book is Free on May 3, 2026

Other Books in the series

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Mountain Lodges, Vanished Lives, and Deadly Claims: Free Mystery / Thriller eBooks

Amanda Cadabra and The Nightstairs (The Amanda Cadabra British Urban Fantasy Mysteries Book 8)

Amanda Cadabra and The Nightstairs (The Amanda Cadabra British Urban Fantasy Mysteries Book 8) FREE by Holly Bell: Four strangers, one missing dog, and a body in a peaceful English village. Only covert witch Amanda Cadabra, with her grumpy feline familiar, can step back 500 years and uncover the deadly secret behind a present-day murder.

This book is Free on May 3, 2026

The Baltimore Bell: A Dark Historical Mystery (Instead Book 1)

The Baltimore Bell: A Dark Historical Mystery (Instead Book 1) FREE by Bella Marenz: Too tall. Too strong. Too wrong. Martha Bright was given away at birth and raised in an orphanage. At fifteen, she vanishes as Mary Johnson—but a new name can't bury what she's done. A dark historical mystery for readers of Sarah Waters and Hannah Kent. Book One of the Instead Series—all three books out now. Start the binge.

This book is Free on May 3, 2026

The Collapse Code

The Collapse Code FREE by Joey Wells: When an EMP plunges Charleston into silence, paramedic Lisa fights to save lives as the city unravels. With Dylan at her side, every step toward her family’s farm means facing looters, violence, and impossible choices. Survival demands more than skill, it demands sacrifice.

This book is Free on May 3, 2026

Gunning for Trouble (A Jo Gunning Thriller Book 1)

Gunning for Trouble (A Jo Gunning Thriller Book 1) FREE by Renee Pawlish: Former Army Civil Affairs specialist Jo Gunning is lying low in Virginia when helping a runaway teen leads to a call for help—and an unusual claim. As Jo digs deeper, she finds lies, assassins, and a shadowy government agency on her trail. Walking away would be easier, but Jo has never been good at leaving someone in trouble.

This book is Free on May 3, 2026

No Passengers (Displaced Book 1)

No Passengers (Displaced Book 1) FREE by Elainie La Force: When millions vanish from her terminal, bank teller Anastasia becomes Russia’s most wanted woman. With only hours to catch a freighter to America, she hitches a ride to escape—only to realize she’s accidentally trapped with a murderer. One mistake, and it could be her last.

This book is Free on May 3, 2026

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Hidden Agendas, Vanished Daughters, and Twisted Pasts: Free Mystery / Thriller eBooks

The Ghost Bride of Cumberland Falls

The Ghost Bride of Cumberland Falls FREE by Ronnie Deaton: Cumberland Falls thunders through ancient rock and on certain moonbow nights, the Ghost Bride appears. When a young bride-to-be falls to her death from Lover’s Leap on her honeymoon, her heartbroken groom follows. Their tragic story becomes a legend, but is it just a story? This atmospheric Appalachian tale reimagines the famous Cumberland Falls.

This book is Free on May 2, 2026

Shop Buddy

Shop Buddy FREE by Bookshelf Q. Battler: Knives! Rope! Power tools! This isn’t your ordinary shopping list! When unemployed and unemployable recent college graduate Steve takes a job with the online service Shop Buddy, he encounters a strange customer who makes a lot of odd orders. Could he be a notorious criminal that the local police are looking for?

This book is Free on May 2, 2026

Gone Not Forgotten

Gone Not Forgotten FREE by MJ Newman: She escaped the gang. Now they’ve taken her daughter. Gracie rebuilt her life—but the past doesn’t forgive. Dragged back into a brutal underworld, she must face old enemies and deadly secrets. How far will she go to get her child back?

This book is Free on May 2, 2026

The Sleeper Network: Origins

The Sleeper Network: Origins FREE by D. Cipher: February 1983. In Moscow, Beijing, and Pyongyang, three general officers authorize a sleeper agent program no service has attempted. Its first phase requires four families. Its target is 2028. Three intelligence services. Four children born on American soil. One operation designed to reach the American presidency across forty-five years.

This book is Free on May 2, 2026

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The Mason Origins Thriller Series

The Wolf and the Lion (The Mason Origins Trilogy Book 1)

The Wolf and the Lion (The Mason Origins Trilogy Book 1) FREE by Rex Holloway: When Colorado’s legalized cannabis industry is targeted by a ruthless Canadian biker gang, Green Zone Defense stands in the way. As Raison and his volatile brother Rage launch a precision heist, former Delta Force operator Mason fights to stop them, uncovering a deeper conspiracy.

This book is Free on May 1, 2026

Other Books in the series

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Shifting Identities, Deadly Desserts, and Relentless Pursuits: Free Mystery / Thriller eBooks

Cupcakes and Cyanide (The Cupcake Capers Book 1)

Cupcakes and Cyanide (The Cupcake Capers Book 1) FREE by Polly Holmes: Charlotte McCorrson has spent her entire life building her business, CC’s Simply Cupcakes. But when a murder victim’s last meal is one of her cakes and the headlines scream Cupcake Killer! Charlotte must prove that while her cupcakes are delicious, they aren’t literally to die for—before she ends up in jail for a crime she didn’t commit.

This book is Free on May 1, 2026

Engagingly Dead (Ella McBane Mysteries Book 1)

Engagingly Dead (Ella McBane Mysteries Book 1) FREE by Michele Scott: Empty-Nester Sleuth Meets Daughter-in-Danger Mystery… When Ella McBane’s eldest daughter Savannah is accused of murder after a body is found at her engagement party, Ella races to clear Savannah's name—using her sharp intuition, and fierce mother’s heart to navigate organized crime, old flames, and a ticking clock.

This book is Free on May 1, 2026

Soap & Sabotage (Cross Bay Key Mysteries Book 1)

Soap & Sabotage (Cross Bay Key Mysteries Book 1) FREE by Holly M. Ambrose: Strange things are happening in Wren Foster's little town on the edge of the Everglades. Flowers vanish, shops are broken into, a landmark is vandalized — and the Waterfront Festival that keeps Cross Bay Key alive is on the line. Can a soapmaker-turned-sleuth crack the case before her town loses everything that makes it home?

This book is Free on May 1, 2026

Body on the Tide (New Forest Crime Drama Book 2)

Body on the Tide (New Forest Crime Drama Book 2) FREE by Lindsay Scott: When Ian Haines's body is pulled from Beaulieu River after being missing for two weeks, the official verdict is swift: accidental death. Journalist Hep Anderssen remembers Ian as a friend from her college days and writing about his tragic death, she uncovers passionate secrets and bitter tensions in Ian's life - did they have deadly consequences?

This book is Free on May 1, 2026

The Recipient (Emerald City Thriller Book 1)

The Recipient (Emerald City Thriller Book 1) FREE by Audrey J. Cole: Sergeant Wade McKinnon knows who killed Samantha the moment he arrives at her crime scene. The problem is, he watched her killer die a year ago.

This book is Free on May 1, 2026

One Kill Away (Detective Allan Stanton Book 2)

One Kill Away (Detective Allan Stanton Book 2) FREE by Alex MacLean: In this gripping police procedural set in Nova Scotia, former detective Allan Stanton is drawn back into the world he left behind when his ex-partner calls on him for help. Stanton races to decipher the cryptic clues left behind by a brutal serial killer — but what happens when his investigation makes him a target?

This book is Free on May 1, 2026

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Cuss Abbott Thriller Series

Lagrange Rising (Cuss Abbott Book 1)

Lagrange Rising (Cuss Abbott Book 1) FREE by Doug J. Cooper: A Tough Space Marshal. A Lawless Frontier. A Fight for Justice Among the Stars. Fans of Jack Reacher will love Cuss Abbott, a relentless lawman chasing justice across worlds. In Book 1 of the Lagrange Series, fast-paced crime drama meets gripping futuristic thriller in a dangerous frontier. Learn more at: crystalseries.com.

This book is Free on April 30, 2026

Other Books in the series

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Psychic Fish, Legal Tangles, and Assassin Plots: Free Mystery / Thriller eBooks

Murder at the Route 66 Ranch Hotel (The Route 66 Ranch Hotel Mystery Series Book 1)

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 April 30, 2026

The Model's Last Pose (The Pearl Hotel Cozy Mystery Series Book 1)

The Model's Last Pose (The Pearl Hotel Cozy Mystery Series Book 1) FREE by Nancy Pennick: In a cozy tearoom of a prestigious five-star hotel, three friends embark on a mission to solve a murder, along with a koi that appears to read minds.

This book is Free on April 30, 2026

Jake Fox: Ties That Blind

Jake Fox: Ties That Blind FREE by Michael Stockham: Buckle up for an electrifying psychological and legal thriller! Award-winning author Michael Stockham plunges you into a world of intrigue, deception, and unbreakable bonds. As the curtains rise on this heart-pounding legal drama, you'll be irresistibly drawn into a web of secrets and suspense that will keep you turning the page! FREE today!

This book is Free on April 30, 2026

Flowers From Berlin (Book 1)

Flowers From Berlin (Book 1) FREE by Noel Hynd: Book one in a fabulous spy and romance series. More than a million sold! Start now! 1939-40: World War II nears. An Englishwoman is torn between two American men, but neither is exactly what he seems. At the same time, a Nazi assassin stalks Franklin Roosevelt. "A Chiller!" LA Times; "Hynd is a notch above the Ludlums and Clancys!" - Booklist

This book is Free on April 30, 2026

The Family or Foe Saga: The Complete Collection (Books 1-4)

The Family or Foe Saga: The Complete Collection (Books 1-4) FREE by J. T. Bishop: A mysterious man with a strange background, unique abilities, and an evil grudge. Three strangers, each of whom has lost a loved one through a series of brutal murders. One woman whose knowledge and intuition will connect them all. With two detectives’ help, can they expose a killer’s secrets before he seeks his revenge and destroys them?

This book is Free on April 30, 2026

The Widow's Homestead

The Widow's Homestead FREE by Joey Wells: She built the homestead with her wife. She buried her wife two years ago. Now the grid is gone, the horses are worth more than gold, and the brother-in-law she hates is walking up her driveway. Some apocalypses come with family.

This book is Free on April 30, 2026

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