From USA Today best-seller Robert Armstrong comes the fast-paced sci-fi series Echo Effect. Get the first two titles from the series in this audiobook: Echo Effect and Symphony of Descension.

Space travel just isn't what it used to be. With the invention of quantum teleportation, space heroes aren't needed anymore. When one particularly unlucky ex-adventurer masquerades as famous pilot and hate figure Jacques McKeown, he's sucked into an ever-deepening corporate and political intrigue. Between space pirates, adorable deadly creatures, and a missing fortune in royalties, saving the universe was never this difficult!

Particle physicist Jon Grady is ecstatic when his team achieves what they've been working toward for years: A device that can reflect gravity. Their research will revolutionize the field of physics - the crowning achievement of a career. Grady expects widespread acclaim for his entire team. The Nobel Prize. Instead, his lab is locked down by a shadowy organization whose mission is to prevent at all costs the social upheaval sudden technological advances bring.

Having saved humanity from an invading alien armada, Ian Lotus finds himself not rewarded but once again on the run -- struggling to stay one step ahead of a galactic government intent on his capture.

Five years ago, the US Space Force became a reality. And while those writing the checks took things very seriously, the other military branches did not. As a result, Space Force was populated by undesirables. My name is Captain Ethan Stone, a decorated member of SEAL Team Six turned Space Force "recruit". Flash forward five years and between tenses. President West is in office. Power has shifted. And Space Force is defunded. With just a handful of us still living on base, we find ourselves being evicted. But before all of us can leave, aliens invade.

Jake Melkins is a few months away from turning 21. By the Seceltor Empire's laws, he will have to go to a breeding camp, or directly into slavery. Neither choice appeals to him. All this changes with the arrival of a space-and-time-traveling being known as Evaran at the space-station-turned-rest-stop that Jake lives on.

Living in the Los Angeles wasteland can be tough - especially when you’re just some dude whose only real skill is computer hacking. So, Artie Gonzalez spends most of his days building drones, modifying his bipolar robot girlfriend, and scavenging for his next pair of Chuck Taylors. Artie watched the world end 10 years ago. Now planet Earth is a dump and Artie has finally accepted that fact, doing what any other respectable tech-nerd might do in his situation - build a post-apocalyptic man-cave. But the world is much different than he thinks.

You know about the invasion of Earth, and the Garde who will do anything to stop it. Yet there is still so much to learn. The stories in Zero Hour will help you get the answers you seek, but only the Garde and their allies can save our planet.

Get the first three books in the Kid Sensation series. Like millions of other kids, Jim grew up wanting to be a superhero. Unlike most of his contemporaries, however, Jim actually had the goods: a plethora of super powers that would have been the envy of any meta on the planet. But when his tryout with the Alpha League - the world's premiere group of supers - goes disastrously wrong, Jim basically becomes an outcast.

I write software at a San Francisco startup. I have my dream job, but I also have a secret. We are not alone. The last time I was taken I was 14. Three weeks ago I celebrated my 21st birthday, and I know that the grey men will soon come again. I devoted my life to technology so I'd be ready when they returned. Others have prepared too, and I will find them. Together we will harness the abilities they have given us. We are Project Solaris. It's time to fight back.

Sam Smith, the biggest superhero fanboy ever, was excited to get super powers...until his first evening as a crime fighter meant dealing with the villain Exosuit. Then Sam died. It was a heroic death, but still not how Sam imagined things going. To his surprise, Sam wakes as a "Villain Core” - the AI behind superhero training centers. He’s quickly informed that an equal number of superheroes and supervillains will be created for an intergalactic competition over the control of Earth, and Sam must prepare his side - the superheroes - for this grand war.

They said I would never finish flight school. Never rank at the top of my class. Never fly with the top aces. Never return from combat against the Kelton androids. Never survive emergency surgery. Here I am. The year is 2151. Earth is gone. A hellscape. I've been unfrozen after 72 years of cryosleep on a medical facility on Saturn's moon, Titan. I have nothing - no home, no friends, no concept of this new world, these Titans. All that remains is the old conflict that has blackened my veins and memories of the ones I loved still fresh in my heart. Forgotten for decades.

The world had become used to the metahumans - people sometimes perfectly ordinary, but sometimes quite extraordinary in appearance - who mostly worked with their governments as high-powered peace officers, fighting crime, and sometimes fighting rogue metahumans who had become super-criminals. Then that comfortable world ended in just one terrifying day.

A survey crew of the human starship Geoffrey Laird lands on a small, unexplored planet quaintly named Fleece as part of a standard scientific mission. The planet looks benign, but a small mix-up with "hostile life-forms" has the three surviving members of the team on the run. Drik, Max, and Laree seek shelter in a small cave, completely cut off from their ship and communications. But it turns out the cave is anything but small.

It's the mid-21st century. The oceans are rising, the world's population is growing, terrorist organizations are running rampant, and it has become readily apparent that humanity's destructive nature is at the heart of the matter. When all faith in humanity seems lost, a startling proposal is announced: Solomon Chavez, the mysterious son of the world's first trillionaire, announces that he, backed by a consortium of governments and wealthy donors, will build an interstellar starship.

Before he was Oldtimer, he was Craig Emilson, a young doctor,sucked into military service at the outbreak of World War III. Enlisting to become a Special Forces suborbital paratrooper, Craig is selected to take part in the most important mission in American military history, a sortie into enemy territory to eliminate the world's first strong artificial intelligence.

What you thought you knew about vampires and werewolves is wrong...so very, very, wrong. A thousand years of effort to keep the Unknown World hidden is unraveling and the Patriarch is tired. He needs to find someone to take over. He finds Bethany Anne.

They tried to destroy our planets. Our way of life. They tried to send us into extinction. But we, the Coalition, fought them and won. That was a decade ago. They’re known as the Host: a cabal of aliens seeking to dominate our sector of space. And they’re back - with help from a powerful new enemy. We’re outnumbered and unprepared. But there is hope. An ancient race of long-dead but technologically advanced aliens called the Navigators have a ship called the Blackstar that could potentially turn the tide. That is if I, Kai Locke, a humble ship racer, can find it and learn how to harness its power in time.

The world had become used to the metahumans - people sometimes perfectly ordinary, but sometimes quite extraordinary in appearance - who mostly worked with their governments as high-powered peace officers, fighting crime, and sometimes fighting rogue metahumans who had become super-criminals. Then that comfortable world ended in just one terrifying day.

Joey Harker isn't a hero. In fact, he's the kind of guy who gets lost in his own house. But then one day, Joey gets really lost. He walks straight out of his world and into another dimension. Joey's walk between the worlds makes him prey to two terrible forces: armies of magic and science who will do anything to harness his power to travel between dimensions.

Imprisoned for a murder he didn't commit, Kaiden's only hope of early release is in serving as a Warden in the game-world of Nova Online. Playing as a unique class while surrounded by aliens, pirates and warring guilds, he and his squad are tasked with protecting new players and enforcing the rule of law. But Kaiden has other ideas; he is intent on proving his innocence. The keys to his freedom lie hidden in the game's seedy underbelly. And as he'll soon discover, the bloody trail that led to his arrest is more twisted than he could have ever imagined.

Kane Andrews is just another one of the billions of people on Earth who watch as Richter, the world's first superhuman, goes on a rampage. All the world's military cannot stop him, no matter what they throw his way. Until, with the whole world watching, Kane surprises himself by flying up to catch someone the supervillain has thrown off a building. With no idea of the extent or magnitude of his powers, Kane has a long way to go before becoming the first superhero.

They reach the shore, barks and joyful laughter swallowed by the crashing waves. Suddenly, an odd-looking object in the sky draws closer. As dark clouds loom, a flicker of unease crosses Scotty’s face. Before he can react, an eerie glow surrounds both boy and dog. In an instant, they vanish without a trace. Now aboard an alien ship, Scotty faces a reality far from home. The walls breathe, the corridors pulse and his fear deepens.

Kalian Gaines has a secret; he just doesn't know it yet. He looks like us, he lives like us...but he is not one of us. Kalian knows nothing outside of his mundane life teaching history on 30th-century Earth, until a day like any other triggers a series of events that will tie his fate to that of humanity. A human handprint, embedded into a rock with alien script, is discovered on a moon that mankind has never set foot on. This discovery holds a secret, which will sweep Kalian into the heart of a conspiracy that has corrupted the galaxy for 200,000 years.

Evan Gabriel wasn't always a feared and respected North American Federation Navy Commander. Before dangerous missions to the ice-bound planet of Poliahu, the deadly jungle world of Eden, and politically corrupt Mars, he was a simple recruit, fighting to make his mark in the elite Naval Special Forces…and was part of a top-secret military experiment that would change his life forever. Zero Point tells the tale of a young man faced with difficult choices and dangerous trials.

The year is 1939. A secret society of extraordinary geniuses is about to share an incredible discovery with the world. A misguided enemy - half man, half machine - will stop at nothing to prevent the group from giving this forbidden knowledge to humanity. And a mother and son on vacation in New York City are handed a comic book infused with a secret code that will lead them straight into the crossfires of the conspiracy.

Get the first three books in the Kid Sensation series. Like millions of other kids, Jim grew up wanting to be a superhero. Unlike most of his contemporaries, however, Jim actually had the goods: a plethora of super powers that would have been the envy of any meta on the planet. But when his tryout with the Alpha League - the world's premiere group of supers - goes disastrously wrong, Jim basically becomes an outcast.

Convicted criminal James Griffin-Mars is no one's hero. In his time, Earth is a toxic, abandoned world, and humans have fled into the outer solar system to survive, eking out a fragile, doomed existence among the other planets and their moons. Those responsible for delaying humanity's demise believe time travel holds the key, and they have identified James, troubled though he is, as one of a select and expendable few ideally suited for the most dangerous job in history.

Jake Melkins is a few months away from turning 21. By the Seceltor Empire's laws, he will have to go to a breeding camp, or directly into slavery. Neither choice appeals to him. All this changes with the arrival of a space-and-time-traveling being known as Evaran at the space-station-turned-rest-stop that Jake lives on.

Samantha was badass even before she learned magic. Fending for herself in the cauldron of a planet torn apart by an alien invasion taught Samantha how to kill. Ruthlessly efficient, her abilities have caught the attention of the Shadow Corps. A group comprised of deadly warriors who focus on galactic safety, using any means necessary. Her first mission puts her team up against a space dragon, death reapers, and the ultimate sorcerer. Samantha had better learn to master her alien magic, or be forced to watch her world, and many others, burn.