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 night spent sleeping on dirt and leaves is not how Claire Matchett expected to spend her vacation. She thought this would be a break. A week of hiking and hot tubs with two other couple friends. Then Claire’s minivan breaks down on a lonely dirt road. With no cell reception, the group has no choice but to hike the rest of the way to their hotel. But it turns out the woods aren’t as easy to navigate as they thought. Hours later, they are lost. Hopelessly lost. And as they navigate deeper into the woods, the members of their party are struck down mysteriously one by one.

Ivy is in trouble. A recent break-up has left her humiliated and raw, so when her best friend, Regan, offers her a month-long escape in the form of a trip to Australia, it feels like a lifeline, one that Ivy grabs with both hands. Regan is everything Ivy’s not. But Ivy is drawn to a calmer type of holiday, so when she spots an ad for crewmembers on a small yacht being sailed by a doting father and his daughter, the girls decide to take the job. Together with a handsome third crewmember, they set off north into tropical heat, but it's not long before doubts start to creep in.

Psychologist Dr. Ophelia Bray has dedicated her life to the study and prevention of ERS—a space-based condition most famous for a case that resulted in the brutal murders of twenty-nine people. When she's assigned to a small exploration crew, she's eager to make a difference. But as they begin to establish residency on an abandoned planet, it becomes clear that crew is hiding something. While Ophelia focuses on her new role, her crewmates are far more interested in investigating the eerie, ancient planet and unraveling the mystery behind the previous colonizer's hasty departure.

Sally Jansen was NASA's leading astronaut, until a mission to Mars ended in disaster. Haunted by her failure, she lives in quiet anonymity, convinced her days in space are over. She's wrong. A large alien object has entered the solar system on a straight course toward Earth. It has made no attempt to communicate and is ignoring all incoming transmissions. Out of time and out of options, NASA turns to Jansen. For all the dangers of the mission, it's the shot at redemption she always longed for.

Deep underground, 39 women live imprisoned in a cage. Watched over by guards, the women have no memory of how they got there, no notion of time, and only a vague recollection of their lives before. As the burn of electric light merges day into night and numberless years pass, a young girl—the 40th prisoner—sits alone and outcast in the corner. Soon she will show herself to be the key to the others’ escape and survival in the strange world that awaits them above ground.

FBI special agent Mercy Kilpatrick has been waiting her whole life for disaster to strike. A prepper since childhood, Mercy grew up living off the land — and off the grid — in rural Eagle’s Nest, Oregon. Until a shocking tragedy tore her family apart and forced her to leave home. Now a predator known as the cave man is targeting the survivalists in her hometown, murdering them in their homes, stealing huge numbers of weapons, and creating federal suspicion of a possible domestic terrorism event.

When Gyre Price lied her way into this expedition, she thought she’d be mapping mineral deposits and that her biggest problems would be cave collapses and gear malfunctions. She also thought that the fat paycheck - enough to get her off-planet and on the trail of her mother - meant she’d get a skilled surface team, monitoring her suit and environment, keeping her safe. Keeping her sane. Instead, she got Em. Em sees nothing wrong with controlling Gyre’s body with drugs or withholding critical information to “ensure the smooth operation” of her expedition.

Jiran is just a child when he receives shattered, imperfect memories of a past life. Nestled inside these emotionless visions is a magic very different to the density and mana he knows, the magic of science. The empire stands alone against the relentless beasts of Madra. Their only means of survival is harnessing the density that saturates her surface, a magic they cannot possibly understand. Will Jiran realize he holds the key to unlocking humanity's infinite potential before they are all wiped out?

On a sunny morning in June, Margaret Carpenter wakes up to find a new iPhone on her doorstep. She switches it on to find a text from her best friend, Charity Atwater. The problem is, Charity’s been missing for over a month. Most people in town—even the police—think she’s dead. Margaret and Charity have been lifelong friends. They share everything, know the most intimate details about one another…except for the destructive secret hidden from them both. A secret that will trigger a chain of events ending in tragedy, bloodshed, and death. And now Charity wants Margaret to know her story.

Claire Kovalik is days away from being unemployed—made obsolete—when her beacon repair crew picks up a strange distress signal. With nothing to lose and no desire to return to Earth, Claire and her team decide to investigate.

Lieutenant Kiera Markov is a scout platoon leader for a peacekeeping force on the remote planet of Tanara, where little has happened for decades, and the only mission is to keep the lithium flowing up the space elevator to feed the galaxy’s incessant demand. But when an unprecedented attack kills the entirety of the brigade’s leadership, the untested lieutenant suddenly finds herself in command.

The best-selling, epic space adventure, Freedom's Fire: the complete series of six audiobooks, in one bundle.

True crime podcaster Trinity Scott is chasing breakout success, and her brand-new serial may get her there. Her subject is Clayton Jay Pelley. More than two decades ago, the respected family man and guidance counselor confessed to the brutal murder of teenage student Leena Rai. But why he killed her has always been a mystery. In a series of exclusive interviews from prison, Clayton discloses to Trinity the truth about what happened that night beneath Devil’s Bridge. It’s not what anyone in the Pacific Northwest town of Twin Falls expects.

Cut-throat bosses, local mobsters, an influencer girlfriend, and evil corporations, that’s who. A fun and smart near future thriller crammed with mind-expanding concepts, science being explored today, fast paced action, and unexpected twists. All driven by expertly presented emotions, desires, and childhood issues in life or death situations.