Rhode Island, 1846. Estranged from his family, writer Merritt Fernsby is surprised when he inherits a remote estate in the Narragansett Bay. Though the property has been uninhabited for more than a century, Merritt is ready to call it home—until he realizes he has no choice. With its doors slamming shut and locking behind him, Whimbrel House is not about to let Merritt leave. Ever.

In the 1800s, a sailing ship crashes off the coast of Norway. In the 1900s, a Zepellin explores an icy canyon in Antarctica. In the far future, a spaceship sets out for an alien artifact. Each excursion goes horribly wrong. And on every journey, Dr. Silas Coade is the physician, but only Silas seems to realize that these events keep repeating themselves. And it's up to him to figure out why and how. And how to stop it all from happening again.

Jim Marlowe and his strange-looking Martian friend, Willis, are allowed to travel only so far. But one day Willis unwittingly tunes in to a treacherous plot that threatens all the colonists on Mars, and it sets Jim off on a terrifying adventure that could save - or destroy - them all.

Deep within the Congo, a team of scientists prepares for the greatest event in the history of humanity, making first contact with an intelligent extraterrestrial species. Only the jungle is no place for doubts. Could first contact be our last?

A mysterious object crests the Sun during a total solar eclipse. Cryptic radio-frequency noise jams TVs and radios worldwide. Sinister alien artifacts inexplicably appear in the capitals of the world's powers. Paralyzed with fear, society begins to crumble. Former NASA scientist Jasmine Evans is the first to spot the object and sound the alarm. Recalled to investigate the mystery, her team makes a critical discovery. But nothing is what it appears to be.

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 Lake Maracaibo, in the northwestern part of Venezuela, a long-hidden extraterrestrial artifact underneath the ocean floor triggers a disaster. The United States military launches an expedition, sending a cutting-edge team of international researchers to the source of a magnetic instability that's destroying any electronics in the region.

Professor Kilmer, a renowned historian of war and diplomacy, is collected from his home and whisked off to Washington. Thrust into the highest levels of government as an adviser to the President, the young historian must come to terms with the seemingly impossible, figure out how to navigate a world where not everything is as it appears, and use all the skills and knowledge he has acquired in his life to help save humanity from a conflict of truly epic proportions.

Oliver Scott is the reclusive genius and trillionaire behind countless world-changing breakthroughs. How does he innovate at such a furious pace? While most hail him as a savior, what if he's actually the most dangerous tyrant humanity has ever seen? A man who will stop at nothing to gain absolute power.

Kris Chambers is a nobody. A 24-year-old man with a dead-end job and no prospects—and, to top it off, a heart condition that forever keeps him on his toes—he spends his life trapped between apathy, self-doubt, and mortal fear. As he walks down an unfamiliar alleyway, he stumbles upon the lifeless body of a stranger. Unbeknownst to him, this grisly discovery marks the beginning of an entirely new chapter in his life. Upon mysteriously awakening in the hospital, he learns that his heart now functions flawlessly, and he feels… different.

Drake, a retired police detective, receives a call in the dead of night from an alien-obsessed podcaster. He hastily departs for Montana the following morning. The phenomenon continues all over the globe. What are they? What do they mean? Britt is on assignment for a digital magazine when she encounters one of the Glass in a tragic boating accident, leaving her no choice but to follow the lead. Panic ensues as mysterious creatures are sighted.

Daniel Rice is a government science investigator whose specialty is solving seemingly intractable problems through scientific inquiry. But Daniel's intellectual strength is sorely tested by the bizarre realities he finds in the quantum world. Extra dimensions of space trap the unwary, probability replaces cause and effect, and time isn't what anyone imagined. The other side of the mirror is a place full of dangers, but it's also somewhere a dedicated scientist can uncover secrets that connect humans with something greater.

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.

Logan West and Emma James grew up together but are now high school seniors going in totally opposite directions after graduation. When they are assigned to work together on one last history project, they hardly expect the monotony of high school life to change. Instead, as they decode a series of unexplained clues hidden within their history project itself, Logan and Emma manage to unfold an ancient mystery that has baffled scientists and archaeologists, one with powerful implications for the present day.

Dr. Tyson Klein is a quantum physicist who has dedicated his entire life to his research. At CERN, he analyses data generated by the Large Hadron Collider, the world's biggest and most powerful particle accelerator. Now, Ty believes he's found a pattern in its output. It looks like an organised data stream, being broadcast over what he calls a quantum radio. Could it be a signal from another universe? A message sent from the future? Or something else entirely?