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.

As a teenager, Quinn Starkweather builds a computer program that accurately predicts world events. He has created a Nostradamus machine. While Quinn becomes very wealthy, the program predicts the world will be torn apart by financial inequity. The 99.9% will rise up against the billionaires in what is dubbed The Rage Wars. The world stands on the razor’s edge of disaster. With enough warning of the coming apocalypse, Quinn builds an ark in the desert—a self-sufficient domed city he calls Altor.

Single mom Cynthia Pace has her hands full with her uniquely gifted child. She has no idea how or why Maddie does the things she does, and neither does her daughter. But there is an answer, discovered by mother and child only after tragedy strikes.

Contains three complete, novel-length audiobooks in the Middle Falls Time Travel series.

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.

Michael Mace, head of security at a top-secret research facility, opens his eyes in a makeshift morgue twenty-four hours following an event in which everyone perished—including him and his best friend, Shelby Shrewsberry. Having awakened with an extraordinary ability unlike anything he—or anyone else—has ever imagined, Michael is capable of being as elusive as a ghost. He sets out to honor his late friend by helping Nina Dozier and her son, John, whom Shelby greatly admired.

Dr. Xin Rou is a Chinese researcher working at the IceCube neutrino experiment at the South Pole. On lucky days a single flash might signal the passage of a ghostly interstellar particle. Suddenly, IceCube’s entire array lights up. A million detectors at once. Which is impossible. The Antarctic sky is clear and calm—but she is already running for the door.

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.

Six minutes after takeoff, Flight 1421 crashes into the Pacific Ocean. During the evacuation, an engine explodes and the plane is flooded. Those still alive are forced to close the doors—but it’s too late. The plane sinks to the bottom with twelve passengers trapped inside. More than two hundred feet below the surface, engineer Will Kent and his eleven-year-old daughter Shannon are waist-deep in water and fighting for their lives.

1941. Audrey Coltrane has always wanted to fly. It's why she implored her father to teach her at the little airfield back home in Texas. It’s why she signed up to train military pilots in Hawaii when the war in Europe began. And it’s why she insists she is not interested in any dream-derailing romantic involvements, even with the disarming Lieutenant James Hart, who fast becomes a friend as treasured as the women with whom she flies. Then one fateful day, she gets caught in the air over Pearl Harbor just as the bombs begin to fall, and suddenly, nowhere feels safe.

When Lance Spector quit the CIA, he swore he was out for good. One more government lie and he would go off the deep end. They could find someone else to do their dirty work. As far as he was concerned, Washington, Langley, the Pentagon could all go to hell.

I wasn’t supposed to survive. The station has been hit. Everyone around me is dead. I have 11 hours of life support left and no way of contacting Earth. I’m alone. I’m stranded. I’m desperate. But I’m alive. The more of the station I explore, the surer I get that this was no accident. Someone did this, and I don't think they're finished yet.

In the quaint town of Hart's Ridge, Deputy Taylor Gray is a force to be reckoned with. From clawing her way out of poverty and foster care to achieving her dream of being in law enforcement, Taylor is determined to make a difference in her community. When a five-year-old girl named Molly walks into a gas station alone and barely speaking, Taylor's determination is put to the test. As she delves deeper into the investigation, Taylor discovers that even the most idyllic towns have their secrets. But this time, the stakes are higher than ever before.

Upper East Side artist, Olivia Wrightwood is ready for a change. Marrying Alex Mudarra, a dedicated and up-and-coming NYPD detective, is exactly what she needs to escape the clutches and scrutiny of her family's political dynasty. When Alex's career plans shift from police work to politics, their idyllic life shifts back to the familiar corruption she ran away from. And after she overhears a late night call, her safety shatters and doubt sets in.

At just 20 years old, Tara Tremain has everything: she's a trainee doctor, engaged to the man of her dreams—a passionate American biology student called Alex Carter. But just when life seems perfect, Alex betrays her in the worst way possible. Ten years later, she’s moved on. But when she’s pulled back into her wealthy family’s orbit for an unmissable party in the heart of Costa Rica, she finds herself flung into crisis: a child is desperately ill and the only remedy is several days’ trek into the heart of the jungle.