You can be improved....Can you really change your body just by carrying around a coded note? Sure - the advanced technology of a d-mat booth will transport you anywhere instantly, but can it also make you taller, stronger, more beautiful? Clair is pretty sure the offer is too good to be true. But her best friend, Libby, is determined to give it a try, longing for a new, improved version of herself. What starts as Libby's dream turns into Clair's nightmare when Libby falls foul of a deadly trap.

Sixteen-year-old Sasha Lawson has only ever known one small, ordinary life. When she was young, she loved her grandfather's stories of parallel worlds, inhabited by girls who looked like her but led totally different lives. Sasha never believed such worlds were real - until now, when she finds herself thrust into one against her will. To prevent imminent war, Sasha must slip into the life of an alternate version of herself, a princess who has vanished on the eve of her arranged marriage. If Sasha succeeds in fooling everyone, she will be returned home; if she fails, she'll be trapped in another girl's life forever.

Reclusive college student Jonathan Tibbs wakes in a pool of blood, not a scratch on him. His life is about to undergo a massive shift. A violent and merciless otherworldly enemy unleashes slaughter in the streets, calling out in a language only he understands. And it is seeking its challenger. In order to defeat the threat, Jonathan must become a temporal weapon...while remaining completely anonymous. Unfortunately, harnessing off-world powers has its own special challenges...

Earth is at war. Portals are opening across the planet and bringing creatures known as Outsiders. Their only desire is to eat, leaving a trail of destruction in their path. The only people who can stop them are the Defenders - led by Gareth Walker - who can open portals of their own to target the Outsiders in minutes. Gareth's only advantage is an ability to see glimpses of his future.

Surrounded by secrecy, it is home to the wildest dreams and darkest nightmares. Incredible amounts of money have been lavished on it. The best minds of two generations have labored to build it. And somehow, bit by bit, it is claiming the Earth's most valuable resource - its children.

Seventeen-year-old Ryn Whittaker is a Citadel: an elite, enhanced soldier specially chosen to guard a Rift, a mysterious and dangerous portal to alternate Earths scientists cannot control or close. Trained from the age of 14, Ryn can run faster, jump farther, and fight better than a Navy SEAL - which is good when you’re not sure if a laser-wielding Neanderthal or an axe-wielding Viking is trying to make it through the Rift and into your world. But the teenager’s military conditioning and education have not prepared her for the boy who crosses through.

It’s been decades since the deadly GM virus decimated humanity, but the world continues to hold out for a cure. Hidden underground in the dark, GEOs remain, what’s left of the population as Farrow Corp works tirelessly in their never-ending search for a miracle. For seventeen-year-old Tylia Coder, survival is all she knows. With virus mutations continuing to spread, Tylia must either watch her ailing mother be ravaged by illness or hack her way into the terrifying Acceptance trials and face the infected world above to save her family.

Seventeen-year-old Elijah Brighton wants to become an ascender--a post-Singularity human/machine hybrid--after all, they're smarter, more enlightened, more compassionate, and above all, achingly beautiful. But Eli is a legacy human, preserved and cherished for his unaltered genetic code, just like the rainforest he paints. When a fugue state possesses him and creates great art, Eli miraculously lands a sponsor for the creative Olympics. If he could just master the fugue, he could take the gold and win the right to ascend, bringing everything he's yearned for within reach...

The fight for the future begins. It's been a century of peace since Earth became a colony of an alien race with far reaches into the galaxy. Some die-hard extremists still oppose their rule on Earth, but Donovan Reyes isn't one of them. His dad holds the prestigious position of Prime Liaison, and Donovan's high social standing along with his exocel (a remarkable alien technology fused to his body) guarantee him a bright future in the security forces. That is until a routine patrol goes awry and Donovan's abducted by the human revolutionary group Sapience.

She's a soldier - Noemi Vidal is willing to risk anything to protect her planet, Genesis, including her own life. To their enemies on Earth, she's a rebel. He's a machine - abandoned in space for years, utterly alone, Abel's advanced programming has begun to evolve. He wants only to protect his creator, and to be free. To the people of Genesis, he's an abomination. Noemi and Abel are enemies in an interstellar war, forced by chance to work together as they embark on a daring journey through the stars.

Princess Snow is missing. Her home planet is filled with violence and corruption at the hands of King Matthias and his wife as they attempt to punish her captors. The king will stop at nothing to get his beloved daughter back - but that's assuming she wants to return at all. Essie has grown used to being cold. Temperatures on the planet Thanda are always sub-zero, and she fills her days with coding and repairs for the seven loyal drones that run the local mines.

Mike and Annie, refugees from the world outside, find a home underground, behind the scenes of Dreamworld, a theme park where hope exists as it does nowhere else. But Dreamworld is threatened by a jealous competitor who kills what he can’t have. As if this were not trouble enough, the two discover that each day there are more of the “trolls” who maintain Dreamworld than there were the day before. As the trolls continue to multiply, they must discover why, or it could mean the end of Dreamworld - and the real world.

In 2157, a mysterious gas known as Variant spreads across the globe, killing or mutating most organic life. The surviving humans take refuge in an underground city, determined to return home. But after generations of failures and botched attempts, hope is beginning to dwindle. That is, until a young scientist makes a unique discovery, and everything changes. Suddenly, there's reason to hope again, and it rests within a group of genetically engineered children that are both human and Variant.

"Go into the Red Zone. Go to Street Freaks," his father directs Ashton Collins before the vid feed goes suddenly silent. The Red Zone is the dangerous heart of mega-city Los Angeles; it is a world Ash is forbidden from and one he knows little about. But if he can find Street Freaks, the strangest of aid awaits - human and barely human alike. As Ash is hunted, he must unravel the mystery left behind by his father and discover his role in this new world.

Rhoma Grace is a 16-year-old student from House Cancer with an unusual way of reading the stars. While her classmates use measurements to make accurate astrological predictions, she looks up at the night sky and makes up stories.

Marguerite Caine grew up surrounded by cutting-edge scientific theories, thanks to her brilliant physicist parents. Yet nothing is more astounding than her mother's latest invention - a device called the Firebird, which allows people to leap into alternate dimensions.

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.

Seventeen-year-old Ryn Whittaker is a Citadel: an elite, enhanced soldier specially chosen to guard a Rift, a mysterious and dangerous portal to alternate Earths scientists cannot control or close. Trained from the age of 14, Ryn can run faster, jump farther, and fight better than a Navy SEAL - which is good when you’re not sure if a laser-wielding Neanderthal or an axe-wielding Viking is trying to make it through the Rift and into your world. But the teenager’s military conditioning and education have not prepared her for the boy who crosses through.

They are coming. The countdown has begun. First visible only as blips on a telescope image, the discovery of objects approaching from Jupiter's orbit immediately sets humanity on edge. NASA doesn't even bother to deny the alien ships' existence. The popular Astral space app (broadcasting from the far side of the moon and accessible by anyone with Internet) has already shown the populace what is coming.

When 16-year-old Kyra Agnew wakes up behind a Dumpster at the Gas 'n' Sip, she has no memory of how she got there. With a terrible headache and a major case of déjà vu, she heads home only to discover that five years have passed…yet she hasn't aged a day. Everything else about Kyra's old life is different. Her parents are divorced, her boyfriend, Austin, is in college and dating her best friend, and her dad has changed from an uptight neat-freak to a drunken conspiracy theorist who blames her five-year disappearance on little green men.

After America’s Second Civil War, the Pro-Choice and Pro-Life armies came to an agreement. According to their Bill of Life, human life may not be terminated from the moment of conception until the age of thirteen. But between the ages of thirteen and eighteen, the child may be gotten rid of by their parent through a process called “unwinding.”

Rhoma Grace is a 16-year-old student from House Cancer with an unusual way of reading the stars. While her classmates use measurements to make accurate astrological predictions, she looks up at the night sky and makes up stories.

Bobby Pendragon is a seemingly normal 14-year-old boy. He has a family, a home, and even Marley, his beloved dog. But there is something very special about Bobby: he is going to save the world.

And not just Earth as we know it. Bobby is slowly starting to realize that life in the cosmos isn't quite what he thought it was. And before he can object, he is swept off to an alternate dimension known as Denduron, a territory inhabited by strange beings, ruled by a magical tyrant, and plagued by dangerous revolution.

For generations, girls known as Spinsters have been called by Arras' Manipulation Services to work the looms and control what people eat, where they live, how many children they have, and even when they die. Gifted with the unusual ability to weave time with matter, 16-year-old Adelice Lewys is exactly what the Guild is looking for, and in the world of Arras, being chosen as a Spinster is everything a girl could want. It means privilege, eternal beauty, and being something other than a secretary. But Adelice isn’t interested.

A year ago Millie lost her legs and her filmmaking career in a failed suicide attempt. Just when she's sure the credits have rolled on her life story, she gets a second chance with the Arcadia Project: a secret organization that polices the traffic to and from a parallel reality filled with creatures straight out of myth and fairy tales. For her first assignment, Millie is tasked with tracking down a missing movie star who also happens to be a nobleman of the Seelie Court.

Joel Byram is an everyday 22nd century guy. He spends his days training artificial-intelligence engines to act more human, jamming out to 1980s new wave - an extremely obscure genre - and trying to salvage his deteriorating marriage. Joel is pretty much an everyday guy with everyday problems - until he's accidentally duplicated while teleporting. Now Joel must outsmart the shadowy organization that controls teleportation, outrun the religious sect out to destroy it, and find a way to get back to the woman he loves.

The world has collapsed, and there are no heroes any more.His name is Three, a travelling gun for hire in a dying world. He has no allegiances, no family, no ties.Against his better judgment, he accepts the mantle of protector to a sick woman on the run, and her young son. Together they set out across the plains in search of a mythic oasis, attempting to survive the forces that pursue them, and the creatures of the dark.In these dark times, a hero may yet arise.

Two days before the start of her junior year, 17-year-old Janelle Tenner is hit by a pickup truck and killed - as in blinding light, scenes of her life flashing before her, and then nothing. Except the next thing she knows, she's opening her eyes to find Ben Michaels, a loner from her high school whom Janelle has never talked to, leaning over her. And even though it isn't possible, she knows - with every fiber of her being - that Ben has somehow brought her back to life.

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.

Sheriff Hayden Duke was born on the Pilgrim, and he expects to die on the Pilgrim, like his father, and his father before him. That's the way things are on a generation starship centuries from home. He's never questioned it. Never thought about it. And why bother? Access points to the ship's controls are sealed, the systems that guide her automated and out of reach. It isn't perfect, but he has all he needs to be content. Until a malfunction forces his engineer wife to the edge of the habitable zone to inspect the damage.