From the Audie-nominated narrator of The Martian. In eleven years' time, a million members of an alien race will arrive at Earth. Years before they enter orbit, their approach will be announced by the flare of a thousand flames in the sky, their ships' huge engines burning hard to slow them from the vast speeds needed to cross interstellar space. These foreboding lights will shine in our night sky like new stars, getting ever brighter until they outshine even the sun, casting ominous shadows and banishing the night until they suddenly blink out.

On a desolate beach in far northern Scotland, the winter storms have been washing up all manner of things since time began. But buried in the centre of one smaller iceberg is a shard of ancient Viking pottery telling a partial tale of a hidden mysterious island beyond the ice and mist, that was home to a great treasure and even greater horrors. Thawing in the same block of ice was a rotting flap of skin that refused to be identified but had similar skin patterns to a creature not seen for 100 million years.

When the Air National Guard receives an emergency call for help from a remote Arctic research station in Greenland, Senior Master Sergeant Dan Cameron is chosen to lead the rescue mission. In an attempt to combat climate change, the scientists have genetically engineered an aquatic biofilm capable of generating oxygen and lowering the temperature of the underlying seawater, producing environmental conditions that awaken an organism that has lain dormant beneath the ocean floor for millions of years.

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.

Alex Hunter - in the mission that turned him from a normal man into the weapon known as the Arcadian - and the elite team of soldiers known as the Hotzone All-Forces Warfare Commandos must enter a hostile country to rescue a defected Chechen researcher from the centre of a country at war. But the HAWCs are not the only ones looking for the rogue scientist and the mysterious package he carries with him. A brutal and relentless killer and his death squad are on the trail, too - and they bring a savagery with them that Hunter and his team have never witnessed before in modern warfare.

It’s senior-year spring break, and Noelle Meyer and Evan Sinclair have been kidnapped. Neither knows why they were chosen, only that they share a tragic past: Evan’s father got away with killing Noelle’s mother, effectively ruining her family when the death was ruled an accident. Despite the connection that should have made them enemies, the teens instead unite to face their other common denominator—their abductors. Noelle and Evan survive one sadistic circumstance after another, eventually making a harrowing escape. But every happy ending comes at a price…

Matthew Keating, a one-time Navy SEAL—and a past president—has always defended his family as staunchly as he has his country. Now those defenses are under attack. A madman abducts Keating's teenage daughter, Melanie—turning every parent's deepest fear into a matter of national security. As the world watches in real time, Keating embarks on a one-man special-ops mission that tests his strengths: as a leader, a warrior, and a father.

Real-estate mogul Martin Cresswell-Smith is the best thing that has ever happened to Ellie. After her daughter’s devastating death, a divorce, and an emotional breakdown, he’s helped her move as far as possible from the grief, the rage, and the monsters of her past. Ellie imagines her new home with Martin in an Australian coastal town will be like living a fairy tale. But behind closed doors is another story - one that ends in Martin’s brutal murder. And Ellie seems almost relieved... Naturally, everyone thinks Mrs. Cresswell-Smith is guilty.

Alexis Silver was ahead of her time, a woman too smart to fit into society at the turn of the century. She gave up her dreams of higher education for love, marrying young. But her husband, and the life she wanted, perished in World War I, soon after. Heartbroken and restless, she booked passage on a cruise along the West Coast in search of adventure, but adventure found her.

When Liz Greene discovers that her father is missing, she is unwittingly drawn into a sinister plot that could change the world forever. Before he went missing, Professor Harry Greene had been working on a crucial research project with major ramifications for the world. Now, Liz needs to find both her father, and his groundbreaking research before it's too late.

Ex-special forces soldier Alex Abbott escaped the Middle East under a cloud and now lives hand-to-mouth in Singapore. Scraping a living as a gun for hire and estranged from his family, Abbott is haunted by ghosts of the past, drinking to dull the pain. Life's tough, but there is one upside - at least he's not in Baghdad. That's about to change. When a job goes badly wrong, Abbott's in hot water. Next he learns that his military son, Nathan, is missing in Iraq. Knowing something is wrong, needing to find his son and desperate for redemption, Abbott has no choice but to go back.

Eric Swan can be killed - but he can never die. For a government agent hunting the most dangerous domestic terrorists, that comes in handy. But Swan is beginning to question his own humanity. Is technology turning this Q2 secret agent into a monster himself? Now villainous brother-sister twins, fueled by a lust for power and revenge, have set their sights on taking down the power grid. And they’ve hired an army of mercenaries to protect them.

Girl genius GiGi is in a lot of hot water. A whiz with computers, she agrees to help her college RA, David, uncover some top-secret information. After all, she doesn't have family or many friends, and David has always been nice to her. It doesn't hurt that he's super cute and irresistible, too. All she has to do is hack into the government's main computer system. But a few hours later, her whole life changes.

Chris Collins is a CIA deputy director with a history of rogue missions. He's lost his wife, his career, and maybe his friends...but there are new "friends" around every corner. And along with the new friends, some powerful new enemies. On a bitterly cold night in Washington DC, Chris Collins is heading home to open his favorite bottle of red, when his past walks right by him. A day later, his world falls apart. But he has no time to feel sorry for himself, as he soon realizes that evil forces are at work on an international scale and his country is under attack from within.

When a daring, high-tech CIA operation goes wrong and is disavowed, Michael Dunne sets out for revenge. CIA operations officer Michael Dunne is tasked with infiltrating an Italian news organization that smells like a front for an enemy intelligence service. Headed by an American journalist, the self-styled bandits run a cyber operation unlike anything the CIA has seen before. Fast, slick, and indiscriminate, the group steals secrets from everywhere and anyone, and exploits them in ways the CIA can neither understand nor stop.