Crossover is the first novel in a series which follows the adventures of Cassandra Kresnov, an artificial person, or android, created by the League, one side of an interstellar war against the more powerful, conservative Federation. Cassandra is an experimental design - more intelligent, more creative, and far more dangerous than any that have preceded her. But with her intellect come questions, and a moral awakening. She deserts the League and heads incognito into the space of her former enemy, the Federation, in search of a new life.

When half of mankind revolts and demands more opportunity, those at the top decide on a compromise: They will build the first colony ships and allow the rest to discover new worlds and start over. Twelve ships are built. The first is called the Orion. Many are eager to go, but only 100,000 are chosen for each vessel. Far from Earth, a new life awaits, and it promises the prosperity they've always wanted. But still, resistance stirs.

Inheriting your uncle's supervillain business is more complicated than you might think. Particularly when you discover who's running the place. Charlie's life is going nowhere fast. A divorced substitute teacher living with his cat in a house his siblings want to sell, all he wants is to open a pub downtown, if only the bank will approve his loan. Then his long-lost uncle Jake dies and leaves his supervillain business (complete with island volcano lair) to Charlie. But becoming a supervillain isn't all giant laser death rays and lava pits.

Our universe is ruled by physics, and faster-than-light travel is not possible - until the discovery of The Flow, an extradimensional field we can access at certain points in space-time that transports us to other worlds, around other stars. Humanity flows away from Earth, into space, and in time forgets our home world and creates a new empire, the Interdependency, whose ethos requires that no one human outpost can survive without the others. It's a hedge against interstellar war - and a system of control for the rulers of the empire.

Few people know the name Vesper Quill. To most folks, I’m just a lowly lab rat who designs brewmakers and other household appliances in the research-and-development lab at the powerful Kent Corp. But when I point out a design flaw and a safety hazard in the new line of Kent Corp spaceships, everyone knows who I am—and wants to eliminate me. I might be a seer with a photographic memory, but I don’t see the trouble headed my way until it’s too late. Suddenly, I’m surrounded by enemies and fighting for my life.

Birdie Binkowitz is just a little bitter. As a young actress, she was the toast of Hollywood, definitely destined for greatness. Then the dragons had to rise up from their thousand-year slumber, take over Earth and ruin everything. Twenty years later, Birdie is living her worst life in her hometown of Tuscaloosa, Alabama, working at her father's Seed and Feed (and Bagels). Then, a mysterious dragon appears in front of the store seeking her help. He’s got a bone to pick with his fellow dragons–and he wants to hit them where it hurts.

A girl named Rose is riding her new bike near her home in Deadwood, South Dakota, when she falls through the earth. She wakes up at the bottom of a square hole, its walls glowing with intricate carvings. But the firemen who come to save her peer down upon something even stranger: a little girl in the palm of a giant metal hand.

Leiyn “Firebrand” is no stranger to a fight. A brash ranger of the Titan Wilds, she takes up her bow to ward against the colossal spirit creatures known as titans, ever a threat to the colonies she has sworn to protect. But no amount of skill can guard against treachery. When tragedy strikes the rangers’ lodge, Leiyn vows to avenge the fallen. But if she is to succeed, she must embrace a power within her she has long denied. Power to move mountains and rivers. Power over life and death.

Nancy Kranich (played by Emmy-nominated actress Natasha Lyonne of Russian Doll and Orange Is the New Black) is a night nurse on an orbiting space station. But Nancy hates her job, is sick of space, and longs to find adventure and a safe place to smoke cigarettes that won’t blow everyone up. But when Nancy gets caught up in an outer-space conspiracy involving President Kennedy, former vice-president Richard Nixon, and an intergalactic object that could change the course of history, she gets way more adventure than she bargained for.

Before he led Ravka’s Second Army, before he created the Fold, and long before he became the Darkling, he was just a lonely boy burdened by an extraordinary power. Eryk and his mother, Lena, have spent their lives on the run. But they will never find a safe haven. They are not only Grisha—they are the deadliest and rarest of their kind.

Get ready to experience two more origin stories in the Backyard Starship universe.

In hiding all her life, Layala prepares for the day the wicked High Elf King Thane will come to steal her—his powerful mate. She trains to take her revenge for the wrongful execution of her parents, who died for her freedom. Now that day has come, forcing her to come face-to-face with what she’s hidden from: a dangerous, dark-haired, warrior king determined to marry her.

Joe Colsco boarded a flight from San Francisco to Chicago to attend a national chemistry meeting. He would never set foot on Earth again. On planet Anyar, Joe is found unconscious on a beach of a large island inhabited by humans where the level of technology is similar to Earth circa 1700. He awakes amid strangers speaking an unintelligible language and struggles to accept losing his previous life and finding a place in a society with different customs, needing a way to support himself and not knowing a single soul.

On a little-known planet, Archmage Varic Vallenar casts a grand spell to empower himself with the magical abilities of his alternate selves. The ritual works too well, granting Varic not only the magic but also the memories from six lives. Including their gruesome deaths. Now, Varic has power greater than any wizard in galactic history, but he knows that won’t be enough. The enemies he faced in those alternate lives were apocalyptic in scale. Terrors of technology and magic. Nothing that he, or anyone, can defeat.

All Blythe Sol ever wanted was to be a normal girl. Yet, her dreams of following in her father's footsteps by joining the military after graduation are crushed when nuclear war comes to the United States in the year 4006. Tens of thousands are killed in a series of attacks on many major cities, while thousands more are left injured from the devastation of the blasts, or terminally ill from the effects of radiation.

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.

When Freedom Airlines flight 121 went down over the Pacific Ocean, no one ever expected to find survivors. Which is why the 16-year-old girl discovered floating among the wreckage - alive - is making headlines across the globe. Even more strange is that her body is miraculously unharmed and she has no memories of boarding the plane. She has no memories of her life before the crash. She has no memories period. No one knows how she survived. No one knows why she wasn't on the passenger manifest.

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.

All Violet wants is to be with Lincoln. But he has a secret so great it could tear them apart. Then there’s Phoenix. He’s intense and enigmatic, but he's always there for her. Caught up in a battle between light and dark - where angels seek vengeance and humans are warriors - Violet must decide who she’s willing to sacrifice and who to trust, because the wrong choice could cost her not only her life, but her destiny.

My name is Landon Hamilton. Once upon a time I was a twenty-three year old security guard, trying to regain my life after spending a year in prison for stealing people's credit card numbers. Now, I'm dead. Okay, I was supposed to be dead. I got killed after all; but a funny thing happened after I had turned the mortal coil...

Can humanity Survive what it never saw coming? On October 15 at 2:15 a.ms Earth vanished. A scattered few woke alone in a world with no rules, other than survival at any cost. A journalist wanders the wretched reality of an empty New York, searching for his wife and son. A serial killer must hunt in a land where prey is now an endangered species. A mother shields her young daughter from danger through every terror-filled breath.

In a desperate attempt to escape destruction decades earlier, humankind was forced underground into the depths of the Earth, creating a new society called the Tri-Realms. After her parents and sister are abducted by the Enforcers, 17-year-old Adele, a member of the middle-class moon dwellers, is unjustly sentenced to life in prison for her parents' crimes of treason.

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.

Forced to move into the palace, Jessa begins training as a Color Alchemist under the direction of the kingdom's most eligible bachelor, Prince Lucas. As an alchemist, Jessa must capture and harness the color of living things. Every color has a unique purpose except red. Red is the untapped magic no one can access - until Jessa.

Mediator Ayala Storme kills demons by night and handles PR by day. She avoids Mediator luncheons and a fellow Mediator who’s been trying to get in her pants for years. She does her job. She keeps her sword clean and her body count high. But when a rash of disappearances leads her to discover that Nashville’s hellkin are spawning a new race of monster on human hosts, Ayala will be the first line of defense against these day-walking killers. That is until one of them saves her life.

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.

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.

For Kitty Doe, it seems like an easy choice. She can either spend her life as a III in misery, looked down upon by the higher ranks and forced to leave the people she loves, or she can become a VII and join the most powerful family in the country. If she says yes, Kitty will be Masked - surgically transformed into Lila Hart, the Prime Minister's niece, who died under mysterious circumstances. As a member of the Hart family, she will be famous. She will be adored. And for the first time, she will matter.

Kat Dubois is immortal, and she's retired. She's long since hung up her sword and left assassinating immortals to someone else...anyone else. She's now a hard drinking, sass-flinging Seattle tattoo artist with the innate ability to read people's fortunes using her charmed deck of tarot cards. Her days of bloodshed are over, and she has nothing but time - an eternity, in fact - to hide from her past. Until someone from her past shows up on her doorstep with news that her beloved older brother and mentor, Dominic, has gone missing.

Humankind has escaped a dying Earth and set out to find a new home among the stars aboard an immense generation ship affectionately named the Ark. Bryan Benson is the Ark's greatest living sports hero, enjoying retirement working as a detective in Avalon, his home module. The hours are good, the work is easy, and the perks can't be beat. But when a crew member goes missing, Bryan is thrust into the center of an ever-expanding web of deception, secrets, and violence.