If you love mysteries with action, suspense and a touch of humor and romance, then the David Wolf series is for you.

When a forgotten journal materializes decades after Drake Ramsey's father vanished in the Amazon jungle, Drake decides to follow in his footsteps and search for the legendary treasure of the Inca empire hidden in the lost Inca city of Paititi.

Jodi Grant had plans—a job interview that held promise and a date with a real woman who didn't only exist in her mind. What she had not planned on was a trip . . . at gunpoint when her father dropped a bombshell in her lap . . . at his own funeral. Dr. Blair Whittington went to Peru in search of ancient artifacts. What she discovered was the illegal antiquities trade in which she had unwittingly become embroiled. Betrayed by Nicolas Grant, Blair must rely on his estranged daughter, the key to her freedom.

Burned-out by both her marriage and work, Liz is desperate for an escape. More than that, she craves an adventure, a total reset. So, when she plans a vacation with her three best friends, she persuades them to spend four nights camping in the stunning mountains of Norway. Following a trail that climbs through lush valleys, towering peaks, and past jewel-blue lakes, Liz is sure that the hike is just what they need. But as they stride farther from civilization, it becomes clear that the women are not the only ones looking to lose themselves in the mountains.

Alec works in the Detroit Overseer-factories, building a mysterious alien device. When three strangers appear, he's provided an opportunity to escape after years of servitude. Cole, a Freeborn loner, encounters Lina after her village is destroyed by the alien Occupation. Together, they make the arduous journey to a fabled safe-zone, trying to stay one step ahead of the enemy drones on their trail. Dex is a Hunter, working for the Occupation to track down escaped factory slaves, or Roamers, at all costs. But his latest hunt uncovers a massive secret.

Weeks after the contamination, Carter is losing hope of ever seeing his sons again. Doomed to live out the rest of his life in his mountain bunker, he teeters between acceptance and despair. And then he sees something down the steep side of his mountain that will change everything. Have his prayers been answered?

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....

1898, East Africa. The Tsavo man-eaters kill 130 people over the course of nine months. The unusually large, pale-coloured, and maneless male lions mark history in what became known as their reign of terror. Now, history is repeating itself. A new pride of killers has arrived in Tsavo, staking out their own bloody legacy. One that includes the murdered wife of conservationist and former hunter Thomas Walker.

Felix used to be a traveling salesman, drifting through the galaxy and hawking his wares. Used to be, that is, until a freak accident in an out-of-the-way system. One rough landing later, Felix finds himself stranded on a wild, alien planet - front and center - in a deadly role he never auditioned for to entertain a secret audience. The upside? A fellow passenger made it to the escape pod with Felix. With this reptilian stranger at his side, he’s not totally alone. The downside? They don’t share a language.

Derek Harrington, retired Marine Force Recon and SERE instructor, is barely scraping by teaching the basics of wilderness survival. His fledgling bushcraft school is on the cusp of going out of business and expenses are piling up fast. His only true mission these days? To get his ailing father into a full care facility and to support his ex-wife and their son. When one of his students presents him with an opportunity too good to be true—$20,000 to instruct a private group for 30 days in upstate New York—Derek reluctantly takes the job.

The Organization, as it’s called, is tasked with keeping the nightmares of myth and legend from invading the public eye. The group must be kept a secret along with the fact that the creatures exist. As civilization expands its boundaries, that undertaking becomes more difficult. A very few are selected to stand on the lines between humankind and the horrors lurking in the dark recesses of the world. Follow Jack Walker and Red Team as they’re pulled into the shadows to combat creatures that once kept them awake at night.

While on a trip into the backcountry, Henry Shaw, a veteran bush pilot is forced to depend on his estranged daughter to survive an unforgiving wilderness. Stranded miles from civilization, injured, and with winter bearing down, hope is bleak. After a terrifying turn of events reveal the plane crash may not have been an accident, tempers flare, secrets unravel, and a trauma from the past resurfaces. Facing overwhelming odds and nonstop danger, it’s now up to Kara to decide whether to remain or embark on a perilous trek across a harsh landscape to make it out alive.

It turns out Addison was right: The world as he knew it did come to an end by means of a killer virus. He’s by himself now, near what was Sicily, Oklahoma, tending to a wilted vegetable garden, foraging for rabbits, and eking out not quite enough water from a dried-up well. It’s time to move. Uncle Izzy, whom he’s decided to seek out in his survivalist cabin hundreds of miles away, had prepared him well for an apocalypse - all but for the loneliness. But the virus didn’t quite kill everybody. And humanity isn't all that humane anymore.

Prepper survivalist author Grace Hamilton invites you to step into a post-apocalyptic, EMP-ravaged world filled with strong, resourceful characters, survivalist knowledge, and edge-of-your seat action.

While studying wolverines on a wildlife sanctuary in Montana, biologist Alex Carter is run off the road and threatened by locals determined to force her off the land. Undeterred in her mission to help save this threatened species, Alex tracks wolverines on foot and by cameras positioned in remote regions of the preserve. But when she reviews the photos, she discovers disturbing images of an animal of a different kind: a severely injured man seemingly lost and wandering in the wilds.

Megan Forrester has barely survived the unthinkable. Six months ago, she witnessed a horrific accident that killed her husband and son, and lives with the guilt of knowing she could have done more to save them. Now, Megan hopes to mend the pieces of her broken spirit by attending a local church group’s annual camping trip. But the church group members—riddled with dark secrets of their own—make a catastrophic navigational mistake, leaving them stranded in an untouched canyon in the West Virginian national forest.

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.

While studying wolverines on a wildlife sanctuary in Montana, biologist Alex Carter is run off the road and threatened by locals determined to force her off the land. Undeterred in her mission to help save this threatened species, Alex tracks wolverines on foot and by cameras positioned in remote regions of the preserve. But when she reviews the photos, she discovers disturbing images of an animal of a different kind: a severely injured man seemingly lost and wandering in the wilds.

When Kat Jamison retreats to the Blue Ridge Mountains, she's counting on peace and solitude to help her make a difficult decision. Her breast cancer has returned, but after the death of her husband, her will to fight is dampened. Her getaway is complicated by a pair of abandoned dogs and two friendly children staying nearby, Lily and Nirav. But when lightning ignites a deadly wildfire, Kat's cabin is cut off from the rest of the camp, separating Lily and Nirav from their parents. Kat, the children, and the dogs must flee on foot through the drought-stricken forest....

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.

Hope County, Montana. Land of the free and the brave, but also home to a fanatical doomsday cult known as The Church of Eden’s Gate that has slowly been infiltrating the residents’ daily lives in the past years. Mary May Fairgrave, a local barkeep, has lost almost everything to the Church: her parents died in suspicious conditions and her brother, entranced by the cult leader’s charismatic words, has vanished. When the authorities refuse to investigate further, she decides to take matters in to her own hands.

Alec works in the Detroit Overseer-factories, building a mysterious alien device. When three strangers appear, he's provided an opportunity to escape after years of servitude. Cole, a Freeborn loner, encounters Lina after her village is destroyed by the alien Occupation. Together, they make the arduous journey to a fabled safe-zone, trying to stay one step ahead of the enemy drones on their trail. Dex is a Hunter, working for the Occupation to track down escaped factory slaves, or Roamers, at all costs. But his latest hunt uncovers a massive secret.

The wall just didn’t look right. Alex has been trying to cope. Life after his deployment had been rough. His ex-wife thought he needed to stop disappointing their daughter. She was right. He would try harder. With six hours before his little girl’s fourth birthday party, he saw the anomaly. One wall was too short. Plenty of time to tear out a panel and look behind it. He found a brick wall. His house wasn’t made of brick. Behind that was another just like the first. He still had time. When the second wall came down, Alex stood and stared at the shining doorway.

In the summer of 1947, an unidentified object crashed in Roswell, New Mexico. There were no survivors. Now it's happened again. But this time, two creatures have emerged from the wreckage alive.

Archaeologists Pippa Quinn and Charlie Jackson find advanced technology in undisturbed 16th-century graves. A portent, the discovery precedes thousands of giant sinkholes opening up across the globe as extreme weather threatens the population. Charlie suspects the two are related.

Eighteen months ago, Aleut Kate Shugak quit her job investigating sex crimes for the Anchorage DA’s office and retreated to her father’s homestead in a national park in the interior of Alaska. But the world has a way of beating a path to her door, however remote. In the middle of one of the bitterest Decembers in recent memory ex-boss — and ex-lover — Jack Morgan shows up with an FBI agent in tow.

Jack Walker and Michael Talbot come from two worlds; the same, yet different. They both find themselves transported into an alien one, where things aren’t as they seem. While it appears similar to the ones they come from, there are some terrifying differences. Is it a dream? Or has reality been somehow warped? Jack comes from a world filled with nocturnal creatures that were once human, but now seek to destroy the last vestiges of humanity.

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.

Less than 60 kids awaken on a distant planet. The colony ship they arrived on is aflame. The rest of their contingent is dead. They've only received half their training, and they are being asked to conquer an entire planet. Before they can, however, they must first survive each other.

In the not-too-distant future, during an unacknowledged mission inside the Syrian border, a government operative unwittingly triggers an incredible event that alters the course of society. A terrible weapon has been unleashed - a weapon that, left to run its course, will destroy the moral fabric of humanity.