In 2168, a mysterious five-sided pyramid is discovered on the ocean floor of Jupiter's icy moon, Europa. Commander Mac O'Bryant and her team of astronauts are among the first to enter the pyramid's central chamber. They find the body of a missing World War II pilot, whose hands clutch a journal detailing what happened to him after he and his crew were abducted by aliens and taken to a place with no recognizable stars.

A generation ago, continent-sized storms called hypercanes caused the Earth to flood. The survivors were forced to retreat deep underground and build a new society. This is the story that sixteen-year-old Jansin Nordqvist has heard all of her life.

Euphemia Williams, known to her few friends as Effie, and everyone else as Eff-Bomb, will punch you for looking at her funny, for using her full name or for noticing that she's a genius. But when an elite global entity known as Unity takes note of her intelligence and offers her a chance to escape the hum-drum life of a foster-child, she signs up. At best, she expects her time abroad to be a vacation. At worst, an actual challenge. But what she finds, upon being swept up in a futuristic transport, is far, far worse.

What do you do when everyone you know - family, friends, everyone - is trying to kill you? You run.

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.

When Justin Slade discovers he has super strength, speed, and the ability to seduce women, life gets a lot more interesting. But as he learns the ropes of his new supernatural abilities, he soon realizes he's not alone.

Among the ruins of a civilization beyond their understanding, humanity clings to survival. Guilds vie for control of ancient cities, bandits ride glowing highways and cyborg adventurers hunt for lost technology. In the City of Towers, once the heart of the fallen Tarakan empire, a historian searches for clues to explain the disappearance of Rafik, a young boy with extraordinary abilities - a Puzzler.

Too long to be a short story, too short to be a novel - welcome to the surprisingly potent world of the novelette. The award-winning magazine Orson Scott Card's Intergalactic Medicine Show has been an online haven for this powerful form of storytelling since 2005. Now its editors have selected their all-time favorite science fiction novelettes from the magazine's eight-year history and reprinted them together in one big book of listening pleasure.

With the doomsday ship only days away from impacting the Earth, humanity's demise seems all but assured. In every corner of the world, news of the impending destruction has led to chaos, looting, and the collapse of the rule of law. As the foundations of civilization crumble around them, Jack and Mia must race to find answers to perhaps the most important questions of all time. Why have the Ateans repeatedly eradicated life on our planet? And could the key to ending the cycle of extinctions be locked somewhere within the Salzburg Chromosome?

Amanda is a scientist for the military's cyborg program. Programming and repairing once-human soldiers is a lot easier than trying to date, so she buries herself in her work. She'll never admit that the cyborgs often seem like more than machines to her - especially the handsome AD-214.

Templar Treasure! Romanov's Bane! The Amber Room! This collection includes three action-packed adventures from the Dane Maddock Origins series: Hell Ship, Dead Ice, and Amber.

When a huge alien spacecraft crashes on the island of Cuba, the world scrambles to investigate. Secretive organizations have waited for generations for this opportunity, and they do not hesitate to send in recovery teams. Cooperation between nations breaks down as every government wants the newly discovered technology for themselves. Naturally, the Cubans have beaten everyone else, and the island is beginning to change. Aircraft flying reconnaissance are swatted from the skies.

The sudden appearance of a second space elevator in Brazil only deepens the mystery about the aliens who provided it: the Builders. Scavenger crew captain Skyler Luiken and brilliant scientist Dr. Tania Sharma have formed a colony around the new Elevator's base, utilizing mobile towers to protect humans from the Builders' plague. But they are soon under attack from a roving band of plague-immune soldiers. Cut off from the colony, Skyler must wage a one-man war against the new threat as well as murderous subhumans and thugs from Darwin.

In this sixth and concluding book of the Tunnels series, the Styx and their cohorts of deadly Armagi have swept across England, leaving death and devastation in their wake. It seems nothing can stop them now. Only a miracle can save the day and, in the inner world at the centre of the earth, Will and Elliott might just have stumbled upon one as they uncover ancient secrets that are fundamental to all human and Styx life.

The aliens have invaded, wiping out almost all life on Earth. Their goal: water. Huge spaceships are draining the oceans, and the few remaining humans have been herded into farms, where their bodies are harvested to support the growing alien army. Humanity's last chance lies in the biospheres that have been planted secretly across the globe. But all is not peaceful in the biome led by Dr. Sophie Winston. With resources dwindling and tensions high, her small group of survivors is divided. Some want to fight, some want to stay hidden, and Sophie just wants to keep everyone alive.