Down there, beyond the deepest caves, below the crust and the mantle, there is another world. An old woman locked away in a Russian asylum has a secret - knowledge of a 500-year-old manuscript written by a long-dead alchemist that will show a passage to the mythical centre of the Earth. She knows it’s real because 50 years ago, she and a team travelled there. And only she made it back. Today, caving specialist Mike Monroe leads a crew into the world’s deepest cave in the former Soviet Union.

A journey into the deepest, darkest jungles of the Venezuelan Amazon...and a primeval place and time that mankind was never meant to exist in. Ben Cartwright, former soldier, home to mourn the loss of his father, stumbles upon cryptic letters from the past between author Arthur Conan Doyle and his great-great-grandfather who vanished while exploring the Amazon jungle in 1908. Amazingly, these letters lead Ben to believe that his ancestor’s expedition was the basis for Doyle’s fantastical tale of a lost world inhabited by long-extinct creatures.

On a desolate beach in far northern Scotland, the winter storms have been washing up all manner of things since time began. But buried in the centre of one smaller iceberg is a shard of ancient Viking pottery telling a partial tale of a hidden mysterious island beyond the ice and mist, that was home to a great treasure and even greater horrors. Thawing in the same block of ice was a rotting flap of skin that refused to be identified but had similar skin patterns to a creature not seen for 100 million years.

In Fathomless, the greatest predator the world has ever known is coming home in 2016. Carcharodon megalodon. The largest and most fearsome predator to have ever existed on our planet. Rumours of its existence in our modern oceans have persisted for centuries. Now, in a new adventure, the rumours explode into brutal and terrifying reality in Fathomless, by Greig Beck.

When a fame-hungry scientist brings an impossible, living specimen of a creature long thought extinct back from the wild jungles of South America he unwittingly brings along a passenger. Something with the potential to destroy every living thing on our planet. The infestation begins, rapidly overtaking medical resources and resisting all treatment.

100,000 years ago the object hit the lake at the deepest point, quickly sinking into its mile-deep Stygian darkness. The sheets of ice closed, time moved on and the land forgot. But over the centuries, legends grew of people vanishing, of strange, deformed animals and of an unexplained luminescence down in the lake depths. When Marcus Stenson won the lucrative contract to create a sturgeon fish farm on the site of disused paper mill on the shore of Lake Baikal, he thought he had won the lottery and refused to listen to the chilling folktales....

There’s something growing deep in the old Angel Mine - something the Native Americans warned us about - And now it’s rising again. Mitch Taylor, ex-Special Forces medic, is seeking a quiet life in the town of Eldon. Tragedy has dogged his life, and he sees the small friendly place as a second chance. But buried deep below the friendly smiles and quaint painted houses is an old abandoned mine that holds a legend of an ancient and terrible god. In the mine’s labyrinthine depths, something has been growing, something from a time of myth when ancient gods strode the Earth.

Klaus and Doris have just made the discovery of their lives - a complete Neanderthal skeleton buried in a newly opened sinkhole. But on removing it, something else tumbles free. Something that switches on, and then calls home. Soon the owners are coming back, and nothing will stop their ruthless search for their lost prize.

The world’s food supply grows aggressively, occupying every inch of earth, no matter how inhospitable. World hunger is averted. Humanity flourishes. RC-714 is digested, absorbed…and passed on. The Change affects small fast-breeding mammals first. They multiply with the same aggressive speed as the ExoGen plants, but an insatiable hunger drives them to violence. A war between species breaks out. When RC-714 reaches humanity, along with every other large creature on the planet, civilization implodes.

When the Air National Guard receives an emergency call for help from a remote Arctic research station in Greenland, Senior Master Sergeant Dan Cameron is chosen to lead the rescue mission. In an attempt to combat climate change, the scientists have genetically engineered an aquatic biofilm capable of generating oxygen and lowering the temperature of the underlying seawater, producing environmental conditions that awaken an organism that has lain dormant beneath the ocean floor for millions of years.

When a sink hole opens up near the Australian outback town of Pintalba, it uncovers a pristine cave system. Sam joins an expedition to explore the subterranean passages as paramedic support, hoping to remain unneeded at base camp. But, when one of the cavers is injured, he must overcome paralyzing claustrophobia to dive pitch-black waters and squeeze through the bowels of the earth. Soon he will find there are fates worse than being buried alive, for in the abandoned mines and caves beneath Pintalba, there are ravenous teeth in the dark.

A short story set in the universe of James S. A. Corey's NYT best-selling Expanse series. Now a Prime Original series. This story will be available in the complete Expanse story collection, Memory’s Legion.

A series of violent shark attacks off the shores of northern California draw the attention of pessimistic Detective Luke Jansen. Despite reports of shark sightings, the injuries are more reminiscent of a chainsaw-wielding maniac. Things get stranger when marine biologist Elise Sheldon encounters the creature. Exhausted and traumatized, her claims that the beast is a Helicoprion are dismissed. With little help from the police department, Luke and Elise form an unlikely alliance that puts them face-to-face with a violent man-eating shark, and its terrifying reason for existing.

Billy Summers is a man in a room with a gun. He’s a killer for hire and the best in the business. But he’ll do the job only if the target is a truly bad guy. And now Billy wants out. But first there is one last hit. Billy is among the best snipers in the world, a decorated Iraq war vet, a Houdini when it comes to vanishing after the job is done. So what could possibly go wrong?

Recon Marine Conor McCall didn’t expect action during his training op in the icy waters off Norway. But when a bizarre summer fog engulfs his boat, he and his team find themselves in a fight against strange, cruel monsters from the depths of the North Sea. When even their allies are enemies, the Recon Marines must do what they have always done: adapt or die. But with a world of ice and monsters seeking to destroy them, every second is mission-critical.

Alex Hunter - in the mission that turned him from a normal man into the weapon known as the Arcadian - and the elite team of soldiers known as the Hotzone All-Forces Warfare Commandos must enter a hostile country to rescue a defected Chechen researcher from the centre of a country at war. But the HAWCs are not the only ones looking for the rogue scientist and the mysterious package he carries with him. A brutal and relentless killer and his death squad are on the trail, too - and they bring a savagery with them that Hunter and his team have never witnessed before in modern warfare.

In the beginning, the gods destroyed the world. Five hundred years later, things haven’t gotten much better for humans. The demigods that were left behind to guard over humanity have been using them as fodder for an endless civil war between themselves, and the humans just go on dutifully slaughtering each other, battle after battle. It’s not all bad, though. Perry McGown makes his living off those bloody, stinking battlefields. He works on a crew that reclaims all the spent shell casings. But if anyone found out that he was a deserter from the war, he’d be executed for heresy.

Best-selling science fiction superstars Larry Niven and Jerry Pournelle combine their talents with those of Steven Barnes in an extraordinary adventure of humankind’s first outpost in the farthest reaches of space. Light years from Earth, colonists land on a planet they name Avalon. It seems like a paradise—until native creatures savagely attack. It will take every bit of intelligence, courage, and military-style discipline to survive.

Cade is settling into a new boarding school, contemplating his future, when he finds himself transported to another realm. He soon discovers their new world is populated with lost remnants from the past: prehistoric creatures, ancient relics, and, stranger still - people. Overwhelmed by his new surroundings, Cade has little time to adjust, for soon he and his fellow classmates are forced to become contenders in a brutal game, controlled by mysterious overlords.

When half of mankind revolts and demands more opportunity, those at the top decide on a compromise: They will build the first colony ships and allow the rest to discover new worlds and start over. Twelve ships are built. The first is called the Orion. Many are eager to go, but only 100,000 are chosen for each vessel. Far from Earth, a new life awaits, and it promises the prosperity they've always wanted. But still, resistance stirs.

Donovan is a world of remarkable wealth that comes at a high price. When Supervisor Kalico Aguila's ship arrives, she discovers a failing colony, its government overthrown, the few remaining colonists gone wild. Donovan could make her career - or kill her. Planetside, Talina Perez is one of three rulers of the Port Authority colony - the only law in the one remaining town. With the Corporate ship demanding answers about the things she's done, Perez could lose everything, including her life. For Dan Wirth, Donovan is a last chance. A psychopath with a death sentence looming over his head, he will make a desperate play for power. No matter who he has to corrupt, murder, or destroy. Captain Max Taggart is the Corporation's enforcer. But is it too late to seize control of Donovan?

My history is unknown. My present is violent. My future may be more dangerous still. I use my unique skillset in one of the Moon’s many watering holes. Here, miners can spend their hard-earned money to forget that they’re not among the wealthy elite in the paradise colony on Mars. When a known crime boss walks in, events will begin to unfold hinting at a dark past and an even murkier future.

Follow Luke as he's transported to a world of magic and monsters. A mysterious goddess has tasked the Earthly game warden with protecting an all-female tribe with strange animal features. Cast off from civilization, he must help this isolated jungle people fortify their village against the rapacious Rakhasa, confound a wicked witch, and breed the next generation of monster children.

For Meredith Gale, ending her life seems like her only choice, and that choice is the reason she’s dangling by her fingertips from a bridge high above the freezing water of the San Francisco Bay. But someone or some thing has other plans for Meredith, and as her fingers slip from the cold steel of the bridge, a disembodied voice asks her a simple question: “Candidate 13: Do you wish to be saved?” Realizing her mistake too late, Meredith screams “Yes!” and instantly finds herself transported to a mysterious island, alongside hundreds of other Candidates like her.

Milton was your average delivery driver until he had a run in with a dying fairy who imbued him with all his magical power. Now Milton can literally tear the blood out of his enemies with a gesture of his hand, every women he meets is attracted to his magical charm, and the powerful Fae Guild wants to pay him a bunch of money to fight evil.

Thirty-three-year-old game designer Dex Walsh spends an entire year devoured by sorrow after the death of his wife. As a last-ditch effort to regain his joy, he sells everything and joins Overtaken Online. Expecting to spawn in a noob-friendly area with guidance from his personal assistant, he instead finds himself naked and alone in a dark prison cell rapidly filling with gas. Under-leveled and not knowing how to escape, he has no idea how far he will be able to progress as long as he pushes forward and doesn't give up.

Finn Featherstone, once a puny outcast, is now a Champion in training. Resting in the baldric across his back is none other than Jigsaw, a magical weapon with untold possibilities. This odd instrument of power is one of the hundreds of swords known as Bizarre Blades, a unique and priceless weapon that Kings have sold their Kingdoms just to obtain. Having been stranded in the freezing woods of Shimoshimo, Finn trains hard day in and day out while trying to survive in the deadly weather.

Jackson Lee is a well-known adventure vlog influencer. He and a small support crew have been cashing in on the video craze with phenomenal, hair-raising exploits for years. Their latest undertaking is way beyond anything they've ever done. It's extremely dangerous and, worse, highly illegal. Never would Jackson have imagined those risks to be the least of his worries.

They are not human. They are not natural. They are not friendly. At a research station in Antarctica, five of the world's top scientists have been brought together to solve one of the greatest mysteries in human history. Their subject, however, is anything but human. Deep beneath the ice, the submerged ruins of a lost civilization hold the key to the strange mutations that each scientist has encountered across the globe. When a series of sound waves trigger the ancient organisms, a new kind of evolution begins. A long-extinct life form is reborn.

Cities all around the world reported strange alien vessels descending. Some saw them as the heralds of a new age; others fired everything they had at them. All were taken as the beams lashed down and drew them into the sky. Dean was left behind, seemingly the last man on Earth. A trail of clues left by his dead wife guides Dean on a perilous journey across America and beyond to learn the truth behind the mysterious ships and save humanity from its doom.

Down there, beyond the deepest caves, below the crust and the mantle, there is another world. An old woman locked away in a Russian asylum has a secret - knowledge of a 500-year-old manuscript written by a long-dead alchemist that will show a passage to the mythical centre of the Earth. She knows it’s real because 50 years ago, she and a team travelled there. And only she made it back. Today, caving specialist Mike Monroe leads a crew into the world’s deepest cave in the former Soviet Union.

Klaus and Doris have just made the discovery of their lives - a complete Neanderthal skeleton buried in a newly opened sinkhole. But on removing it, something else tumbles free. Something that switches on, and then calls home. Soon the owners are coming back, and nothing will stop their ruthless search for their lost prize.

100,000 years ago the object hit the lake at the deepest point, quickly sinking into its mile-deep Stygian darkness. The sheets of ice closed, time moved on and the land forgot. But over the centuries, legends grew of people vanishing, of strange, deformed animals and of an unexplained luminescence down in the lake depths. When Marcus Stenson won the lucrative contract to create a sturgeon fish farm on the site of disused paper mill on the shore of Lake Baikal, he thought he had won the lottery and refused to listen to the chilling folktales....

In Fathomless, the greatest predator the world has ever known is coming home in 2016. Carcharodon megalodon. The largest and most fearsome predator to have ever existed on our planet. Rumours of its existence in our modern oceans have persisted for centuries. Now, in a new adventure, the rumours explode into brutal and terrifying reality in Fathomless, by Greig Beck.

Alex Hunter - in the mission that turned him from a normal man into the weapon known as the Arcadian - and the elite team of soldiers known as the Hotzone All-Forces Warfare Commandos must enter a hostile country to rescue a defected Chechen researcher from the centre of a country at war. But the HAWCs are not the only ones looking for the rogue scientist and the mysterious package he carries with him. A brutal and relentless killer and his death squad are on the trail, too - and they bring a savagery with them that Hunter and his team have never witnessed before in modern warfare.