One small handwritten letter, sent from a dark, remote corner of the planet and lost in the system for 60 years, is about to change the entire human race. Outside Denver, Colorado, Joe Rickards stands over a small aircraft wreckage, studying burnt remains still smoldering in a field of freshly fallen snow. He's an investigator for the NTSB, working to carefully roll back the last several hours and identify the cause of the accident. But this time, he can't.

With the help of a powerful computer system, Alison Shaw and her team are preparing to translate the first two-way conversation with the planet's second smartest species. But the team discovers much more from their dolphins than they ever expected when a secret object is revealed on the ocean floor. One that was never supposed to be found.  

In 2018, Canadian archaeologist Ron Jackson makes a mind-boggling discovery in Antarctica - right before disappearing without a trace, leaving behind only his controversial theory that humans have lived on Earth far, far longer than we think they have. Decades later, in 2042, when Jackson's wife dies under mysterious circumstances, an unlikely pair of investigators, Agatha Devenworth and Pano Hofer, begin investigating whether her death might be connected to Jackson's disappearance. 

Like millions of people around the world, Jeremy Logan (famed enigmalogist, or investigator of unexplained things) has grown to rely on his incredible new tech device. Made by Chrysalis, the global multibillion dollar tech company, the small optical device connects people in a stunning new way, tapping into virtual reality for the first time on a wide scale.

One of the most stunning abilities ever seen...has just been born into the eyes of a six-year-old girl. For one very special reason. Something is about to happen. Something unstoppable, and something terrible. An event that can do more than just change human history. But mankind has a secret. A little girl named Sarah. Afraid and alone, and under the care of an inexperienced social worker. A young woman about to discover that she will do anything to keep Sarah alive. Because there is much more to Sarah than meets the eye.

Dr. Sam Anderson is one of the most celebrated scientists in history. Ten years ago, he invented a device that changed the world forever. Now his life is about to be ripped apart—and his own creation may be to blame. One fateful morning, Sam discovers that his girlfriend has been murdered and that his daughter is accused of the crime. Sam believes she's innocent, but he can't prove it. There's only one thing he can do to save his daughter: confess to the crime. And so he does. But in the future, murderers aren't sent to prison. They're sent to the past.

The Ghent Altarpiece is the most violated work of art in the world. Thirteen times it has been vandalized, dismantled, or stolen. Why? What secrets does it hold? Enter UNESCO investigator, Nicholas Lee, who works for the United Nations’ Cultural Liaison and Investigative Office (CLIO). Nick’s job is to protect the world’s cultural artifacts—anything and everything from countless lesser-known objects to national treasures. When Nick travels to Belgium for a visit with a woman from his past, he unwittingly stumbles on the trail of a legendary panel from the Ghent Altarpiece.

In the summer of 1601, Galileo Galilei made a startling discovery in the mountains of Eastern Italy that, if made public, could shatter faith in religion, bring down governments, and lead to worldwide turmoil. For more than 400 years, the secret has been guarded by a small group of incredibly powerful people, willing to do everything in their power to keep these discoveries from being made.

A 4,000-year-old mystery lurks in the hills of Georgia. While investigating a strange series of ancient symbols, an archaeologist vanishes, and a professor he entrusted with the secret is murdered. Former government agent Sean Wyatt learns of his friend's disappearance and the murder. Now he must unravel the clues to the ancient mystery that holds incredible power.

Rex Walker always wanted to be like his father: a daring, adventurous man, traveling the world in pursuit of mysterious relics. While teaching anthropology at a Boston college, Rex attempts to bury the past, until he discovers a hidden clue he can’t ignore. With the help of a former student, he teams up with an alien-obsessed billionaire, and they search for the fabled Bridge. As an unidentified object nears Pluto, speculation surges. Some hail it as the homecoming of a distant alien race, and this cult is unwavering in their efforts to usher our world into a new era.

By the time playwright and actor Shawn Frost had won two Tony Awards by his late 20s, he was seen as a theater prodigy—a meteoric rise that the performing arts community had not witnessed in almost a hundred years. His work? Shakespearean in scope, character, and popularity—boundless and beautiful. His own character? Flawed. And in a place like New York City, where failings get magnified, Shawn Frost finds that, even from the heights of artistic sublimity, no one is insulated from the demons that have caused the best of entertainers to fall from grace.

Juan Cabrillo's first adventure with the Oregon - a state-of-the-art spy ship disguised as a nondescript lumber hauler - takes him and his crew into dangerous waters as they try to put Tibet back in the hands of the Dalai Lama by striking a deal with the Russians and the Chinese.

Nate and Brooke Martin arrive at their summer cottage along the rapidly gentrifying Great Lakes shoreline. On a morning stroll along the beach, Nate finds an unusual gold coin half-buried in the sand. Where did it come from? Teaming up with reclusive ex-Coast Guard officer and Great Lakes master of the deep Abner Hutch, Nate dives for clues to the treasure's origins. But when word leaks that there may be a fortune hidden under the waves, they find themselves hunted by mega-rich residents up the coast who are willing to do anything to advance their extravagant lifestyles.

Lucas Tappan, a wealthy and eccentric billionaire and founder of Icarus Space Systems, approaches the Santa Fe Archaeological Institute with a proposal for an excavation - and a hefty donation. Hoping to bring welcome publicity to the privatized space travel industry, he wants to finance a careful, scientific archaeological excavation of the 1947 Roswell Incident site. The Institute agrees and Nora Kelly, much to her annoyance, is tasked with the job. Instead of the evidence of a crashed UFO, Nora's excavation immediately uncovers two unknown murder victims buried at the site. 

"The audio production of Khalifa’s twisty thriller begins with a terrorist takeover of a Manhattan skyscraper and features a spirited reading by Brick. Former FBI agent Alex Blackwell initially sounds annoyed as he is dragged from retirement to handle a hostage situation in a New York City high-rise. His attitude shifts to that of a determined professional when Seth, the terrorist leader, demands a safe escape and a trade."

One small handwritten letter, sent from a dark, remote corner of the planet and lost in the system for 60 years, is about to change the entire human race. Outside Denver, Colorado, Joe Rickards stands over a small aircraft wreckage, studying burnt remains still smoldering in a field of freshly fallen snow. He's an investigator for the NTSB, working to carefully roll back the last several hours and identify the cause of the accident. But this time, he can't.

With the help of a powerful computer system, Alison Shaw and her team are preparing to translate the first two-way conversation with the planet's second smartest species. But the team discovers much more from their dolphins than they ever expected when a secret object is revealed on the ocean floor. One that was never supposed to be found.  

Since the dawn of civilization, a hidden hand has gripped mankind. Operating in darkness with limitless wealth and power, this ancient Shadow Caste has controlled every major event in human history - mass migrations, revolutions, plagues, even two world wars. But now these ancient “caretakers” want to change the global experiment. Civilization is too successful, they believe, and our overpopulation threatens the existence of all life on earth. 

A 4,000-year-old mystery lurks in the hills of Georgia. While investigating a strange series of ancient symbols, an archaeologist vanishes, and a professor he entrusted with the secret is murdered. Former government agent Sean Wyatt learns of his friend's disappearance and the murder. Now he must unravel the clues to the ancient mystery that holds incredible power.

In 2018, Canadian archaeologist Ron Jackson makes a mind-boggling discovery in Antarctica - right before disappearing without a trace, leaving behind only his controversial theory that humans have lived on Earth far, far longer than we think they have. Decades later, in 2042, when Jackson's wife dies under mysterious circumstances, an unlikely pair of investigators, Agatha Devenworth and Pano Hofer, begin investigating whether her death might be connected to Jackson's disappearance. 

Down the beach, she can just make out the rusting hulk of the Ferris wheel through the dawn mist. The hairs prickle on her neck as she drags her focus back to the chestnut hair fanned out in the shallow water at her feet, to the grains of sand decorating the beautiful girl’s white cheeks like freckles.  

Breathable air on Earth is running out and no one knows why. A mysterious discovery nearly 30 million years old may hold the answer. To find it, a glaciologist and the inventor of a cutting-edge brain implant will need to work together. But can they unlock its shocking secrets in time to save humankind? Filled with stunning twists and turns, Augmented is a technothriller that will leave you breathless!

As the great tribulation begins, a series of puzzling instructions from the branch tests the faith and resolve of Witnesses worldwide. Follow the experiences of Peter, an elder in a congregation in Northern California, his wife Rachel, and their extended family and friends as difficult decisions and heart-wrenching sacrifices are made to be obedient and loyal. 

The next big thing in artificial intelligence is here. Codenamed Cronus, the machine is capable of having its own thoughts and ideas - an absolute dream come true, until it wasn’t. When Cronus responds with the word “No” to a specific task it is assigned, Anagnorisis Technologies brings in Gilles Guattari to investigate. His combined background in psychiatry, psychology, and AI research makes him their best hope in evaluating Cronus, and determining if the machine is only malfunctioning or if it has become something more.