Meanwhile, Gillan McArdle’s academic career is ending because of one stupid lapse of judgement. Offered a short-term contract, he lands on the Hebridean island of Harris to investigate obscure animal bones. Quickly dismissing the unicorn skull as a thinly disguised fake, he can’t deny there’s something unusual about these bones. Baited by rumors of a majestic tusked horse roaming the uplands, Gill begins to suspect someone is manipulating him. As he gradually unravels the mystery of the skull, he grasps a disturbing conclusion: If this creature does exist, the evidence suggests it’s a killer.

For Nathan Bray, this philosophical thought experiment becomes brutally real when an inexplicable event causes the oceans of the world to disappear, leaving him stranded on the dried-out ocean floor with his seven-year-old daughter.

In Lake Maracaibo, in the northwestern part of Venezuela, a long-hidden extraterrestrial artifact underneath the ocean floor triggers a disaster. The United States military launches an expedition, sending a cutting-edge team of international researchers to the source of a magnetic instability that's destroying any electronics in the region.

After a rough break up, Wyatt moves to New York City, eager to prove himself while working on Wall Street. When he’s asked to visit the father of his ex-girlfriend, a billionaire tycoon, his fate is sealed. The revolutionary company, Nu-En, launches a radical innovation, an energy that will allow every person on the planet access to power. Only it doesn’t perform as anticipated. Harnessing the ocean has consequences, and highly dangerous creatures emerge from the depths. Soon, the Earth is fracturing, and the world will never be the same.

Dr. Mallory Hayes, a Centers for Disease Control and Prevention (CDC) medical investigator, is a committed physician and researcher quietly battling height and air-flight anxiety. When a tsunami devastates the coast of Southern California, the Federal Emergency Management Agency (FEMA) establishes a camp to house the tens of thousands of people displaced by the disaster, and the Army is brought in to provide medical services.

TWO HOSPITAL BEDS in a Stanford University lab. Two still figures, attached by bundles of cables to the experimental QARMA supercomputer. Analise and Wolfe are true scientific pioneers, the first humans to ever leave the shells of their physical bodies to explore an entirely new virtual universe beyond time and space. But their creation, the most vivid VR metaverse ever envisioned, has come under attack.

It's a long way from the hills of East Tennessee to the arid islands of the Dutch Caribbean. From the author of the best-selling Deep Series, Boone is a brand-new prequel that follows Boone Fischer in his early years. His passions, his challenges, and the fascinating people he meets along the way... all are parts of the journey that will shape the man he will become, and lead him to the life of a divemaster in Curaçao and Bonaire.

USGS geophysicist, Mac Atwood, and volcanologist, Taylor Reed, survived being swallowed by the Earth during the earthquake swarm. They returned to the ordinarily peaceful and serene environs surrounding Mammoth Mountain and the Long Valley Caldera. When a series of seemingly minor earthquakes take place in the Sierra Nevadas, Mac the seismic detective, expresses his concern to Taylor. Her skills as a volcanologist will be tested as it appears the Long Valley Caldera, the second largest supervolcano in the U.S. behind Yellowstone, is awakening.

One small handwritten letter, sent from a dark, remote corner of the planet and lost in the system for 60 years, is about to change the entire human race. Outside Denver, Colorado, Joe Rickards stands over a small aircraft wreckage, studying burnt remains still smoldering in a field of freshly fallen snow. He's an investigator for the NTSB, working to carefully roll back the last several hours and identify the cause of the accident. But this time, he can't.

Dr. Tyson Klein is a quantum physicist who has dedicated his entire life to his research. At CERN, he analyses data generated by the Large Hadron Collider, the world's biggest and most powerful particle accelerator. Now, Ty believes he's found a pattern in its output. It looks like an organised data stream, being broadcast over what he calls a quantum radio. Could it be a signal from another universe? A message sent from the future? Or something else entirely?

Adam and Kimberly Hall are enjoying a quiet suburban life with their daughter, Crystal, and their dog, Bowser, when an emergency message flashes on their phones: meteor impact imminent, seek immediate shelter. Minutes later, the shock wave rages through South Austin like a hurricane, and they’re left to pick up the pieces. As dusk begins to fall and horrific creatures come crawling out of the impact craters, they realize they’re under attack—and the attackers are not from Earth.

The world holds its breath as the colossal asteroid 2011 AG5 hurtles towards the Earth. As humanity is faced with extinction, archaeologist Sarah Morgan is in a race against time to uncover a secret that has been buried for millennia: that an advanced ancestor once populated the Earth. As Sarah travels across the continents in search of the truth, she discovers there are those that will kill to protect this most ancient of secrets....

When Leah’s daughter, Nyla, unexpectedly appears at her cabin in the Appalachian Mountains, it’s a dream come true. For five years, Leah hasn’t seen or heard from her daughter—ever since Nyla stormed out of the house, determined to go live with her idealized father.

Akart's standalone novel, ARkStorm, is based on actual events. In 1861, a 43-day series of atmospheric rivers, huge flows of moisture carried from the tropics to the West Coast, turned large swaths of California into an inland sea. The intense rainstorms pounded the state unabated with little respite. Rivers became raging torrents that swept away entire communities, killing thousands. The State’s Central Valley turned a massive body of water 300-miles long and 20-miles wide.

A small island off the coast of Korea is torn apart by a bioweapon that drives everyone - men, women, and children - insane with murderous rage. The people behind the attack want Korea reunified or destroyed. No middle ground. No mercy. Soon Japan, China, and the United States are pushed to the brink of war, while terrorists threaten to release the rage bioweapon in a way of pure destructive slaughter.

This original short story takes us back in time to show us how it all began. On a whirlwind, action-packed thriller ride through Italy, Denmark, Germany, Switzerland, it shows us the beginning of CIA operative Agent Zero's career - and brings us up to the fateful moment when his memory came to be lost.

In this trio of sci-fi techno thrillers, a female police detective turned Interpol officer with a rare vision mutation is up against a serial killer and potential apocalyptic disaster. This set includes The Dreaming Tree, Meet Your Maker, and Out of Time.

Fifteen years ago, five ordinary teenagers were singled out by a prophecy to take down an impossibly powerful entity wreaking havoc across North America. He was known as the Dark One, and his weapon of choice - catastrophic events known as Drains - leveled cities and claimed thousands of lives. Chosen Ones, as the teens were known, gave everything they had to defeat him. After the Dark One fell, the world went back to normal...for everyone but them. Of the five, Sloane has had the hardest time adjusting.

Who do you trust when you have no one left but yourself? Kenzie is a military-trained assassin, hunting her target in Mexico. Cori is a student at the University of Guadalajara. One fateful afternoon their lives will come together under a flurry of gunfire. Questioning the lies around them, they will soon learn that they can not live without each other. On the run from an unknown enemy, they must learn to trust each other, and to believe they'll make it out alive.

After years of paying her dues on the force, Beth Sturgis has earned her place as a detective for the Robbery-Homicide division of the Atlanta PD. Now, she's heading up a major manhunt for a potential serial killer who's working his way inward from the outskirts of the city. The copycat elements in the first crime scene lead Sturgis to retired FBI agent Jack Kale, who was responsible for apprehending and nearly killing the murderer known as the Scarecrow, the same Scarecrow who appears to be this new killer's terrible inspiration.

Matthew Riker keeps to himself, doesn't cause trouble, and never talks about his past. But after a chance encounter with a woman and a small child on the run, Riker will have to make a choice: use his hard-won skills to protect two innocent victims, or stay in the safety of his quiet life. What follows is an adrenaline-soaked thrill ride that will take Riker on a cross-country chase, through the seedy underbelly of a New York criminal empire, and into the darkest places of the human heart.

When Sasha receives a call from her old university friend Gabby inviting her to spend Christmas at Gabby’s remote Scottish lake house, Sasha knows she shouldn’t go. Twelve years ago, on Christmas Eve, when Sasha and her five closest friends were celebrating the festive season, something truly horrific happened that would change the course of their friendship forever. Something that meant Sasha hasn’t spoken to any of them since that night.

After the killing of a prominent mob lawyer, NYPD homicide detectives Jacob Jackson and Caitlin Grimes start receive chilling, written “rules” for how to commit the perfect murder. "Rule number one for the perfect murder: Evidence is your enemy. Leave none behind." Jackson (Reid Scott) and Grimes (Cobie Smulders) race to find the killer, setting them on a collision course with the city’s crime underbelly, and a perpetrator who seems happy to toy with them. “Rule number two. No crimes of passion. The perfect murder is always business, never pleasure.”

England, 1914. The world is at war. Captain Hastings, injured and shaken, is invited to Styles Court to recover. It’s a grand old country house - the family home of his old friend - and a perfect haven. Or so it seems. But in the blistering summer heat, trouble is afoot. Simmering tensions are tearing the family apart, and it all comes to a head in the most horrifying way.

Jenny sits in the same seat on the same train every week, seeing familiar faces come and go. Until a chance encounter shatters her world. Sixteen years ago, Jenny survived a traumatic ordeal that left her best friend, Susie, missing and presumed dead. The world has its theories about what happened to Susie Patterson, and one of those theories points the finger at Jenny. Now she lives a quiet life, volunteering at a crisis helpline while trying to deal with her own anxiety and the true crime fans obsessed with finding her missing friend.

It’s 1984, and life has changed beyond recognition. Airstrip One, formerly known as Great Britain, is a place where Big Brother is always watching, and nobody can hide. Except, perhaps, for Winston Smith. Whilst working at the Ministry of Truth, rewriting history, he secretly dreams of freedom. And in a world where love and sex are forbidden, where it’s hard to distinguish between friend and foe, he meets Julia and O’Brien and vows to rebel.

Kidnappers grabbed Jenna in broad daylight, right in front of her children and their horrified classmates. Her family was issued an insane ransom demand: $25 million in cash and jewels, payable by the end of the school day, otherwise they’ll never see her again. As Jenna’s mother scrambles to gather the money, detectives Mo Butler and George Ortega follow the trail of the kidnappers, which will lead them through a sordid landscape of jealous lovers, broken dreamers, and twisted schemers. But every second counts, and there’s one thing Jenna Wade doesn’t have: very much time.

When Heather McKinley dreamed of becoming a doctor, she imagined curing sick kids and sporting pink stethoscopes. She never anticipated the sleepless nights, grueling exams, and endless labs. And she certainly never knew that her medical school earned the nickname Dead Med thanks to the tragic history of students overdosing on illegal drugs. But Heather would never consider doing anything like that. That is, until her longtime boyfriend dumps her, she finds herself failing anatomy, and her world starts to crumble.

Cassie thinks she has met the perfect man. Joel is sweet, handsome, romantic, and best of all, he’s crazy about Cassie. She thinks she’s found the guy she’ll spend the rest of her life with. Have children with. Grow old with. Yes, she knows about his perfect ex-girlfriend, Francesca. The beautiful, brilliant chef, beloved by all his friends. But she thinks Francesca is out of the picture. She thinks Francesca is gone for good. Think again, Cassie.

Jazz Bashara is a criminal. Well, sort of. Life on Artemis, the first and only city on the moon, is tough if you're not a rich tourist or an eccentric billionaire. So smuggling in the occasional harmless bit of contraband barely counts, right? Not when you've got debts to pay and your job as a porter barely covers the rent. Everything changes when Jazz sees the chance to commit the perfect crime, with a reward too lucrative to turn down.