Some doors aren't meant to be opened.... While many on Earth grow fearful of the Messengers' remarkable powers and others lament a lack of interplanetary cooperation, two discoveries threaten to turn the world on its head. One find could simultaneously rewrite the history of two planets; one revelation could tear Dan McCarthy's life apart. With the stakes higher than ever following the birth of his daughter Piper - a child like no other with a secret the world isn't ready to handle - Dan will do whatever it takes to protect his family.

The pulse hits without warning. In one harrowingly destructive instant, a mysterious seismic pulse in the Scottish Highlands rips away all semblance of global security. When peace is shattered, fear takes over. The stakes rise without mercy. As the pulse's chaos spreads across the world, it becomes painfully clear that Piper McCarthy - a child born like no other - might hold humanity's only hope of averting total disaster.

In the year 2243, the Moon belongs to the dead. The largest graveyard in the solar system, it was the perfect solution to the overcrowding and environmental problems that had plagued mankind for centuries. And the perfect place for Cali Washington to run away from her past. But when a mysterious meteor crashes into one of the Moon’s cemeteries, Cali and her fellow Caretakers find themselves surrounded by a terrifying enemy force that outnumbers them more than a thousand to one. An enemy not hindered by the lack of air or warmth or sustenance. An enemy that is already dead.

We were fighting on the wrong side of a war we couldn't win. And that was the good news. The Ruhar hit us on Columbus Day. There we were, innocently drifting along the cosmos on our little blue marble, like the native Americans in 1492. Over the horizon come ships of a technologically advanced, aggressive culture, and BAM! There go the good old days, when humans only got killed by each other. So, Columbus Day. It fits. When the morning sky twinkled again, this time with Kristang starships jumping in to hammer the Ruhar, we thought we were saved.

It’s been 120 years since the 50 or so worldships containing the few million survivors of the human species set off after the planet Earth was destroyed by a meteor. On the Worldship Humility, Sam, a 30-year-old Airlock Operative, is bored. Living in space should be exciting and full of adventure, except it isn’t, and he fills his time hacking 3-D movie posters and holographic adverts outside the stores in the retail zone. Petty thief Yasmine Emile Dufont is also from the WS Humility, but she is not bored....

Ryland Grace is the sole survivor on a desperate, last-chance mission - and if he fails, humanity and the Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.

The new novel by the author of the best-selling The World Walker series. 'My name is Daniel Harbin, and I'm a child of The Deterrent.' What if a superhuman turned out not to be so super...or even human? Britain's superhero, The Deterrent, was unveiled to the world in 1979 and disappeared two years later. The truth about his origins has never been revealed. The rumours about his children - those that survived - and their mysterious abilities have never been confirmed. Until now....

A man falls from the sky. He has no memory. He has no sense of self. What lies ahead are a series of tests, each more brutal than the last, and if he gets through them all, he might just reach a town called Discovery.

When an experiment to study quantum uncertainty goes spectacularly wrong, physics student Bill Rustad and his friends find that they have accidentally created an inter-dimensional portal. They connect to Outland - an alternate Earth with identical geology, but where humans never evolved. The group races to establish control of the portal before the government, the military, or evildoers can take it away. Then everything changes when the Yellowstone supervolcano erupts in an explosion large enough to destroy civilization and kill half the planet.

What lies on the dark side of the moon could change the course of humanity forever. When a Chinese rover discovers an alien technology on the dark side of the moon, it is up to Richard "Rock" Crandon and his NASA team of scientists and engineers to devise a way to return before the Chinese and Russians. Forced to deal with bureaucratic oversight and a complex team of personalities, Rock Crandon pushes his team to their limits.

 The Sun is dying. Earth will perish too, consumed by the star in its final death throes. But rather than abandon their planet, humanity builds 12,000 mountainous fusion engines to propel the Earth out of orbit and onto a centuries-long voyage to Proxima Centaurai.... 

Stealth. Gorgon. Regenerator. Cerberus. Zzzap. The Mighty Dragon. They were heroes. Vigilantes. Crusaders for justice, using their superhuman abilites to make Los Angeles a better place. Then the plague of living death spread around the globe. Despite the best efforts of the superheroes, the police, and the military, the hungry corpses rose up and overwhelmed the country. The population was decimated, heroes fell, and the city of angels was left a desolate zombie wasteland like so many others.

Rob Dunbar is the world's best history professor. And with good reason: he's been alive for 3,000 years, keeping his existence a secret since before the days of Athens. But a stranger named Baxter has a better use for Rob's vast expertise. Baxter's looking to found a mining company in the Asteroid Belt. In exchange for Rob's help, he'll try to unravel the mystery of Rob's origin. As they're getting their outfit off the ground, they come under covert attack by HemiCo, a powerful Mars-based corporation.

They hunt us. They bomb our worlds for target practice. A star cluster in the constellation of Orion rotates once every thousand years. Those who rule there have an ancient tradition: When each cycle ends, they train their fleets by spilling the blood of lesser beings. The enemy fleets are coming again. In response, the Rebel Worlds gather their starships to face the terrifying threat, and this time humanity is asked to stand with them.

The sequel to the number one Audible Best Seller Earthcore, Mount Fitz Roy continues the tale of Patrick O’Doyle and Bertha Lybrand, who were part of the horror show that occurred far below the mountains of Utah. They learn that the "mother of all motherlodes” discovered there was not unique, that there is another deposit similar to it three miles beneath the towering peak of Cerro Chaltén on the disputed border between Chile and Argentina. O'Doyle, a middle-aged former member of a disgraced black-ops unit, gets his aging team back together to go after this fortune.