ENDED Second Friday

Mystery, Thriller & Horror Day

September 11, 2026

Mysteries and Thrillers British Detectives Horror Crime & Mystery

The second Friday turns the lights down low. Expect twisty whodunits, breathless thrillers and spine-tingling horror — all free on Kindle for one day only.

This day has ended. Pricing is set by Amazon and may have changed.
On a Bus Called Beryl: A Gadabout Club Cozy Mystery — Book One

On a Bus Called Beryl: A Gadabout Club Cozy Mystery — Book One

By Quinn Vale

Nineteen years of an online book club. Four people in their sixties and seventies who had never once been in the same room. Then the one who organised everything died - five weeks before the trip she had spent two years...

Nineteen years of an online book club. Four people in their sixties and seventies who had never once been in the same room. Then the one who organised everything died - five weeks before the trip she had spent two years planning - and left them a 1974 Bedford bus and the twelve-week itinerary anyway. They go. Of course they go. Devon, week one. A Christie week, a ferryman who knows the tide better than anyone alive, and a body on the crossing. Margo Prentice has read four hundred mysteries and solved none of them, and now there is one on her doorstep. Fair play throughout: every clue is on the page before the answer is. No gore, no grimness, nobody chased down an alley. If you beat Margo to it, that is the point rather than the problem. Book One of The Gadabout Club. For readers of Richard Osman and Alan Bradley.

Trapped in Amber

Trapped in Amber

By M.H.Urban

After her parents' unfortunate divorce, Andrea moves with her mother and younger sister from Texas to Boston. It's a new beginning, a chance to start afresh, but it doesn't turn out as expected, and the old family carria...

After her parents' unfortunate divorce, Andrea moves with her mother and younger sister from Texas to Boston. It's a new beginning, a chance to start afresh, but it doesn't turn out as expected, and the old family carriage house in Beacon Hills hides deadly secrets that endanger their future and even their lives. Jack lives cut off from everyone, secluded in Tisch library because he thinks it's the only way to stay sane, but when destiny puts Andrea in his path, Jack finds himself at a crossroads. Should he stay away, as avowed, or risk losing everything he has worked so hard to achieve and intervene to save the life of a stranger?

Swimming with Manatees

Swimming with Manatees

By Bill Bennett

When a young woman washes ashore in Crystal Cove, Detective Ava Martinez uncovers a marine‑biotech conspiracy willing to poison ecosystems, silence whistleblowers, and kill anyone who gets too close — including her partn...

When a young woman washes ashore in Crystal Cove, Detective Ava Martinez uncovers a marine‑biotech conspiracy willing to poison ecosystems, silence whistleblowers, and kill anyone who gets too close — including her partner. Praise for Swimming with Manatees “A taut, atmospheric eco‑thriller… exposes corporate malfeasance.” — BlueInk Review “Corporate secrets, crooked power… pulls no punches.” — Foreword Clarion Review Eric Hoffer Grand Prize Shortlist; 2nd Runner‑Up, Killer Nashville Readers’ Choice Award As Ava investigates April Seagram’s ties to BioSphere, a marine‑biotech company with a spotless public image and a dangerous private agenda, the case widens into a network of falsified permits, stolen research, and corporate intimidation. Crystal Cove’s beauty hides a truth powerful people will kill to protect. Then Ava’s partner is murdered. Grief sharpens into resolve as Ava pushes past every warning to expose the corruption threatening Florida’s coastline. But in a town where alliances shift like tides and silence is currency, the next body could be hers. Swimming with Manatees is an atmospheric eco‑thriller blending coastal noir, environmental stakes, and a morally complex investigation led by a heroine fighting her way back from loss. Perfect for readers who love: • Eco‑thrillers with real‑world urgency • Atmospheric Florida settings • Crime fiction rooted in character and conscience • Slow‑burn mysteries that escalate into high‑stakes danger • Investigators who refuse to break Honored with national recognition, including the Firebird Award, Literary Titan Gold, PenCraft Award for Mystery/Suspense, and the Eric Hoffer Grand Prize Shortlist. Not for readers seeking light Florida adventure or nonstop action from page one. Dive into Crystal Cove — and discover why silence is the most dangerous weapon of all.

The Spy and the Nightingale

The Spy and the Nightingale

By Lea Hollis

Passion sizzles and a lie becomes the truth when a spy and a widow pose as lovers to pursue a dangerous man. Driven by duty . . . British spy Nathaniel Blackmore has one objective: apprehend an Englishman suspected o...

Passion sizzles and a lie becomes the truth when a spy and a widow pose as lovers to pursue a dangerous man. Driven by duty . . . British spy Nathaniel Blackmore has one objective: apprehend an Englishman suspected of treason in France in the tumultuous year after the Napoleonic Wars conclude. Intrepid Scottish widow Isobel Graham, grieving the loss of her husband at Waterloo, is determined to find her missing younger sister. Her desperate search leads her to Paris on the fringes of Nathaniel’s investigation. Entangled by choice . . . Posing as lovers to infiltrate Paris’s most dissolute society, they plunge into ever-widening circles of vice, from an opulent gambling hall to a club catering to debauched desires. In a perilous world of shadows and lies, genuine attraction is a complication. Compelled by desire . . . Fueled by danger, their charade as lovers ignites into incendiary passion and something unexpectedly tender . . . except their relationship isn’t meant to last beyond the mission’s end.   Set in Paris, 1816, The Spy and the Nightingale is the first book in Lea Hollis’s spicy Sirens & Spies series.

The Devourer

The Devourer

By Dawn Shannon

Aspiring teen detective Dee Dee relies on cold, hard logic, but logic can’t explain why her classmates are suddenly vanishing, leaving behind nothing but empty clothes and mysterious green slime. Hired to find a missing...

Aspiring teen detective Dee Dee relies on cold, hard logic, but logic can’t explain why her classmates are suddenly vanishing, leaving behind nothing but empty clothes and mysterious green slime. Hired to find a missing boy whose brother blames a literal monster, Dee Dee and her ragtag crew are forced to abandon their skepticism and plunge into a terrifying underworld of secret covens and psychic phenomena. But as the investigation unearths deadly ties to her father's darkest secrets and her own mother's unsolved disappearance, Dee Dee must outsmart a reality-twisting predator before she and her friends become its next victims.

Edge of Madness (A Cain Shepherd FBI Suspense Thriller—Book One)

Edge of Madness (A Cain Shepherd FBI Suspense Thriller—Book One)

By Kate Bold

“This is an excellent book… When you start reading, be sure you don’t have to wake up early!”—Reader review for The Killing Game⭐⭐⭐⭐⭐A killer leaves a mysterious trail of death with Buddhist overtones, and FBI Agent...

“This is an excellent book… When you start reading, be sure you don’t have to wake up early!”—Reader review for The Killing Game⭐⭐⭐⭐⭐A killer leaves a mysterious trail of death with Buddhist overtones, and FBI Agent Cain Shepherd, a practicing Buddhist, is the FBI’s last hope to understand the subtle clues, and stop a murderer before it’s too late…Predators are dying by their own methods as FBI Agent Cain Shepherd decodes crime scenes of righteous retribution. Can he stop a spiritually-corrupted killer who views murder as the path to enlightenment before he claims the next victim?EDGE OF MADNESS is BOOK #1 in a new series by #1 bestselling mystery and suspense author Kate Bold, whose bestseller NOT ME (a free download) has received over 3,000 five star ratings and reviews.The CAIN SHEPHERD mystery series delivers pulse-pounding suspense, while filled with shocking twists and revelations. With its distinctive protagonist, this series reinvigorates the mystery genre and will keep you turning pages all through the night. Fans of Robert Dugoni, Lisa Gardner, and Gregg Olsen are sure to fall in love.Future books in the series are also available!“This book moved very fast and every page was exciting. Plenty of dialogue, you absolutely love the characters, and you were rooting for the good guy throughout the whole story… I look forward to reading the next in the series.”—Reader review for The Killing Game⭐⭐⭐⭐⭐“Kate did an amazing job on this book and I was hooked from the first chapter!”—Reader review for The Killing Game⭐⭐⭐⭐⭐“I really enjoyed this book. The characters were authentic, and I see the bad guys as something we hear about daily on the news... Looking forward to book 2.”—Reader review for The Killing Game⭐⭐⭐⭐⭐“This was a really good book. The main characters were real, flawed and human. The story went along quickly and wasn't mired in too many unnecessary details. I really enjoyed it.”—Reader review for The Killing Game⭐⭐⭐⭐⭐“Alexa Chase is headstrong, impatient, but most of all brave with a capital B. She never, repeat never, backs down until the bad guys are put where they belong. Clearly five stars!”—Reader review for The Killing Game⭐⭐⭐⭐⭐“Captivating and riveting serial murder with a twist of the macabre… Very well done.”—Reader review for The Killing Game⭐⭐⭐⭐⭐“WOW what a great read! Talk about a diabolical killer! Really enjoyed this book. Looking forward to reading others by this author as well.”—Reader review for The Killing Game⭐⭐⭐⭐⭐“Page turner for sure. Great characters and relationships. I got into the middle of this story and couldn’t put it down. Looking forward to more from Kate Bold.”—Reader review for The Killing Game⭐⭐⭐⭐⭐“Hard to put down. It has an excellent plot and has the right amount of suspense. I really enjoyed this book.”—Reader review for The Killing Game⭐⭐⭐⭐⭐“Extremely well written, and well worth buying and reading. I can't wait to read book two!”—Reader review for The Killing Game⭐⭐⭐⭐⭐

Cliff Diver

Cliff Diver

By Carmen Amato

Acapulco's first female police detective dives into an ocean of secrets, lies, and murder when she investigates her own lieutenant's death."Consistently exciting" -- Kirkus ReviewsIn this explosive start to the award-win...

Acapulco's first female police detective dives into an ocean of secrets, lies, and murder when she investigates her own lieutenant's death."Consistently exciting" -- Kirkus ReviewsIn this explosive start to the award-winning crime fiction series set in Acapulco, Emilia Cruz beat the odds to be the city's first female police detective.Now she has to navigate the corruption that turned the department into a pressure cooker of danger and distrust.Drug cartel money can buy anyone, it seems. Including Emilia's own lieutenant.When he's murdered, Emilia is assigned to lead the investigation. She uncovers an ugly mess no one wants exposed.Both Acapulco's mayor and the head of the police union want Emilia to sweep evidence under the rug and close the case. Male colleagues are ready to sabotage her, resentful of a woman in the squadroom.But Emilia won't walk away because her prime suspect is another police detective.Feeling like one of Acapulco's famous cliff divers praying not to smash into the rocks below,  Emilia must choose between truth and survival. Either way, she won't be ready for the impact.Neither will you."A thrilling series" -- National Public RadioAwarded the National Intelligence Medal for her counterdrug work, ex-CIA author Carmen Amato guides you through a world torn from today's headlines. Detective Emilia Cruz isn't just solving crimes, she's showing you the pervasive darkness of Mexico's narco underworld. Acapulco is ground zero. In today's war on drugs, cartels fight over smuggling routes into the United States for fentanyl and cocaine, homicide rates spiral, human trafficking is on the rise and missing persons are never found.The danger is real, the stakes couldn't be higher and every cop is a target.Yet each day, Emilia Cruz finds another reason to keep fighting for the people of Acapulco.She's a good liar, a fast thinker, and a mean kickboxer in a department that didn't want her and is still trying to break her. Even as she fights to keep what she's earned, Emilia keeps a record of women who have gone missing--casualties of Mexico's drug violence--and is always searching for Las Perdidas, the Lost Ones.

Bedtime Cozy Mystery Short Stories & More #1

Bedtime Cozy Mystery Short Stories & More #1

By Kristie Lynn Higgins

Enjoy three lite cozy mystery short short stories, quick reads right before bed.1. Murder on the Maple Express ( about 880 words )2. The Curious Case of the Purloined Pendant ( about 870 words )3. The Blueberry Pie That...

Enjoy three lite cozy mystery short short stories, quick reads right before bed.1. Murder on the Maple Express ( about 880 words )2. The Curious Case of the Purloined Pendant ( about 870 words )3. The Blueberry Pie That Killed the Judge ( about 760 words )Book also includes samples to other stories.

Come Close (A Hannah Mercy FBI Suspense Thriller—Book One)

Come Close (A Hannah Mercy FBI Suspense Thriller—Book One)

By Rylie Dark

“A brilliant book. I couldn’t put it down and I never guessed who the murderer was!” —Reader review for Only Murder ⭐⭐⭐⭐⭐   When FBI Agent Hannah Mercy transfers back home to Lincoln, Nebraska to care for her ailing...

“A brilliant book. I couldn’t put it down and I never guessed who the murderer was!” —Reader review for Only Murder ⭐⭐⭐⭐⭐   When FBI Agent Hannah Mercy transfers back home to Lincoln, Nebraska to care for her ailing father, she expects a quiet life—but finds herself embroiled in solving mysteries from the past, and hunting down diabolical killers….   As indie musicians are gruesomely picked off with shattered dreams and broken strings, Hannah Mercy must tune into a killer's twisted melody. It's up to her to stop the music—and the murders—before the final note is played.   COME CLOSE is book #1 in a new series by #1 bestselling and critically acclaimed mystery and suspense author Rylie Dark, whose books have received over 2,000 five-star reviews and ratings.    The HANNAH MERCY series offers a captivating take on the mystery genre, filled with unexpected twists and intense suspense. Its cleverly-crafted lead character, a brilliant but flawed heroine, will win your affection and keep you turning pages long into the night. Fans of Robert Dugoni, Melinda Leigh, Lisa Gardner, and Teresa Driscoll are sure to fall in love.   Future books in the series are also available!   “I loved this thriller, read it in one sitting. Lots of twists and turns and I didn’t guess the culprit at all… Already pre-ordered the second!” —Reader review for Only Murder ⭐⭐⭐⭐⭐   “This book takes off with a bang… An excellent read, and I'm looking forward to the next book!” —Reader review for SEE HER RUN ⭐⭐⭐⭐⭐   “Fantastic book! It was hard to put down. I can’t wait to see what happens next!” —Reader review for SEE HER RUN ⭐⭐⭐⭐⭐   “The twists and turns kept coming. Can't wait to read the next book!” —Reader review for SEE HER RUN ⭐⭐⭐⭐⭐   “A must-read if you enjoy action-packed stories with good plots!” —Reader review for SEE HER RUN ⭐⭐⭐⭐⭐   “I really like this author and this series starts with a bang. It will keep you turning the pages till the end of the book and wanting more.” —Reader review for SEE HER RUN ⭐⭐⭐⭐⭐   “I can't say enough about this author! How about ‘out of this world’! This author is going to go far!” —Reader review for ONLY MURDER ⭐⭐⭐⭐⭐   “I really enjoyed this book… The characters were alive, and the twists and turns were great. It will keep you reading till the end and leave you wanting more.” —Reader review for NO WAY OUT ⭐⭐⭐⭐⭐   “This is an author that I highly recommend. Her books will have you begging for more.” —Reader review for NO WAY OUT ⭐⭐⭐⭐⭐

Keeper of Pleas

Keeper of Pleas

By A. Wendeberg

December 1880, Whitechapel. Nine dead infants in flowerpots. A vanished mortician. And one lead: the prostitute who saw him last.Coroner Sévère reads people's lies as easily as case notes. It's made him an effective inve...

December 1880, Whitechapel. Nine dead infants in flowerpots. A vanished mortician. And one lead: the prostitute who saw him last.Coroner Sévère reads people's lies as easily as case notes. It's made him an effective investigator. And cynical. But when he questions Miss Mary, he encounters something unexpected: a woman whose lies he can't read and who might as well be the mortician's killer.In a city where money masks the darkest secrets, Sévère must navigate between what's legal and what's necessary. Even if it means hiring the services of the very woman he's investigating.______A gritty Victorian crime novel that explores the darkest corners of London's underworld. For readers of Lyndsay Faye's The Gods of Gotham, Caleb Carr's The Alienist, and Antonia Hodgson's The Devil in the Marshalsea.

Share This Event

Help others discover FREE books! Share this event with your friends and family.

Important Notice

Availability and downloads may vary. Free book offers are subject to change and availability. Some books may have regional restrictions, and download availability depends on your location and Amazon account settings. Please verify the price on Amazon before downloading, as prices may change without notice.

Never miss a Stuff Your Kindle Day

Get an email when Mystery, Thriller & Horror Day goes live — and stay on the list for future Friday drops.

We send one email a week. Unsubscribe anytime.

More Stuff Your Kindle Days