The South American Boreal: one of the last truly unexplored jungles on our planet. In its dark heart is an ancient crater basin, sealed in by a living cage, making it a time capsule for an ancient, deadly ecosystem. Matt Kearns, Carla Nero and a team of scientist explorers have found their way in. In the crater's sunken interior are creatures from a primordial nightmare. Dangers lurk in every treetop, under every rock or loom monstrously over them. It is a place where mankind is out of time.

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. 

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 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.

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. 

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.

The Chinese government has been keeping a secret for 40 years: they have found a species of animal no one believed even existed that will amaze the world. Now the Chinese are ready to unveil their astonishing discovery within the greatest zoo ever constructed. A small group of VIPs and journalists has been brought to the zoo deep within China to see its fabulous creatures for the first time. Among them is Dr. Cassandra Jane 'CJ' Cameron, a writer for National Geographic and an expert on reptiles.

The sequel to the number one Audible Best Seller Earthcore, Mount Fitz Roy continues the tale of Patrick O’Doyle and Bertha Lybrand, who were part of the horror show that occurred far below the mountains of Utah. They learn that the "mother of all motherlodes” discovered there was not unique, that there is another deposit similar to it three miles beneath the towering peak of Cerro Chaltén on the disputed border between Chile and Argentina. O'Doyle, a middle-aged former member of a disgraced black-ops unit, gets his aging team back together to go after this fortune.

Jack West Jr has made it to the Supreme Labyrinth. Now he faces one last race—against multiple rivals, against time, against the collapse of the universe itself—a headlong race that will end at a throne inside the fabled labyrinth. But the road will be hard. For this is a maze like no other: a maze of mazes. Uncompromising and complex. Demanding and deadly. It all comes down to this. It ends here—now—in the most lethal and dangerous place Jack has encountered in all of his many adventures.

At a remote ice station in Antarctica, a team of US scientists has made an amazing discovery. They have found something buried deep within a 100-million-year-old layer of ice. Something made of metal. Led by enigmatic Lieutenant Shane Schofield, a team of crack United States Marines is sent to the station to secure this discovery for their country.

Under the fierce heat of the Australian outback, the laws of nature serve a rough justice. When a man vanishes deep in the Northern Territory, local police write it off. But his family suspect otherwise—and when the call for help goes out, Ben Hope and Jeff Decker are there to hear it. Ben’s instincts, honed by years of Special Forces missions, soon see the story told by a trail of bullet casings, rumours of a missing map and a lethal cocktail of greed, power and money.

A team of explorers seek ancient treasures hidden in an undiscovered cave. At first it seems they will return empty-handed. Then their luck changes. But the team's elation is short-lived as they become trapped there in the dark, with little possibility of escape. Then events take an even more terrifying turn. For not all secrets are meant to be found....

Deep in the jungles of Peru, the hunt for a legendary Incan idol is underway - an idol that in the present day could be used as the basis for a terrifying new weapon. Guiding a US Army is Professor William Race, a young linguist who must translate an ancient manuscript which contains the location of the idol.

Every five minutes, a transplant candidate dies while waiting for a heart, a liver, a kidney. Imagine a technology that could provide those life-saving transplant organs for a nominal fee...and imagine what a company would do to get a monopoly on that technology.

In the aftermath of a hurricane, a series of strange events plague the coastal waters off Florida. People go into the water and never return. Corpses of killer whales drift ashore, ravaged from enormous bite marks. A fishing trawler is found adrift, with a mysterious gash in its hull. Transferred to the coastal town of Merit, police officer Leonard Riker uncovers the horrible reality of an enormous thresher shark lurking off the coast. Forty feet in length, it has taken a territorial claim to the waters near the town harbor.