Billy Boustany uncovers a mystery that transforms his sleepy midwestern city into a vibrant metropolis of iridescent skyscrapers, wild parties, and eccentric characters. He has the adventure of a lifetime, but it comes with a perilous secret. When Billy shares his discovery with his college student daughter, they explore together until they reach a magnificent city of Native Americans at an ancient site. However, they also encounter a formidable foe—the Knights, a secret society bent on keeping outsiders away.

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.

Author Randall Morgan is on his way home after spending 14 days in the secluded cabin where he always goes to write the endings of his books. However, when he arrives in his hometown, East Alin, he is greeted by a disturbing sight.

Before the lights went out, Jack Warrant never considered himself a prepper. That was someone on the edge, a conspiracy theorist or a doomsday cultist who had a fatalistic view of the world. He was neither a theorist nor a cultist. He was an optimist. At least that was what he told himself when the darker thoughts creeped into his psyche as he stared at the ceiling in the middle of the night. Whenever he started down the rabbit hole, he always clawed his way back into the sunlight.

When a killer comet hurtles toward Earth, 18-year-old Joanna Murphy is selected to wait out the apocalypse in an underground bunker. She enters cryosleep with her close-knit team, preparing to resettle the planet after the atmosphere clears in 200 years. Joanna is the only one who wakes up. Faced with a bunker full of bones and a blocked exit, Joanna must claw her way to the surface, figure out what happened to her team, and try not to panic - or die. That’s going to be tricky if she’s the only person left in the world.

Sara Morin, a brilliant computational biologist, makes a discovery that will fundamentally change our understanding of human evolution. But when she publishes her results, she ignites a firestorm she never expected.

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.

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.

I'd been living on the streets for around eight months before I lost count. It wasn't easy, but it was still preferable to what I had to deal with at home. In all that time, unable to trust anyone, I had been alone (I knew from experience that people always failed you). Then one day, while out searching for food, I stumbled upon this mangy dog being attacked. It wasn't a big deal to help him, but then he ended up saving my life which is when I realized there was something special about him: Muttface wasn't a normal dog - he was crazy intelligent.

In the dead of winter, an EMP attack destroys the U.S. power grid. No electricity. No cars or phones. The country is plunged into instant chaos. But for Hannah Sheridan, it's the best day of her life. For the last five years, she's been the captive of a sadistic psychopath—until the EMP releases the lock of her prison.

ER doctor Sloane Marks is shattered when she learns her husband Ethan slept with his partner at Seattle Homicide. She considers leaving him and joining The One, having gone to college with the popular dating app’s billionaire founder, Brody Carr. But at forty-two, Sloane feels she has no choice but to forgive Ethan if she wants a chance at creating the family she never had.

The ice is coming. It was the last thing we expected, but the world is freezing. A new ice age has dawned. Billions have fled the glaciers. A cataclysmic war is coming. In orbit, a group of scientists are running the Winter Experiments, a last-ditch attempt to understand why the planet is cooling. None of the climate models they build make sense. But then they discover an anomaly, an unexplained variation in solar radiation...and something else. Close to the burning edge of the sun, they catch a fleeting glimpse of something that shouldn’t be there....

This is the story of Leif Grettison, a crew member of humanity’s first flight to the stars, even though he had not expected to take that trip. The year is 2069. The Troubles, a decade plus of proxy, and direct warfare among the US, Russia, and China, had brought the world to the brink of apocalypse. It was close enough to finally scare the leaders of the powers into signing the Geneva Treaties, a set of agreements pledging peace, cooperation, and the dismantling of the military complexes.

In 1998, the American Jorgenson family had been on a year-long road trip in Australia. One humid, storming night, the mother - Elsa Jorgenson - vanished in an isolated stretch of Australian everglades. Elsa was never seen again. That night, twelve-year-old Lily Jorgenson was left alone and terrified in the family camper—even her teenage sister Iris is missing. When Iris comes racing back through the rain, she refuses to tell where she’s been. Lily is certain her sister is hiding a dark secret.

Rare-book dealer Ashlyn Greer’s affinity for books extends beyond the intoxicating scent of old paper, ink, and leather. She can feel the echoes of the books’ previous owners—an emotional fingerprint only she can read. When Ashlyn discovers a pair of beautifully bound volumes that appear to have never been published, her gift quickly becomes an obsession. Not only is each inscribed with a startling incrimination, but the authors, Hemi and Belle, tell conflicting sides of a tragic romance.