Frey and Rafi are inseparable.... two edges of the same knife. But Frey's very existence is a secret. Frey is Rafi’s twin sister - and her body double. Their powerful father has many enemies, and the world has grown dangerous as the old order falls apart. So while Rafi was raised to be the perfect daughter, Frey has been taught to kill. Her only purpose is to protect her sister, to sacrifice herself for Rafi if she must.

It is the cusp of World War I, and all the European powers are arming up. The Austro-Hungarians and Germans have their Clankers, steam-driven iron machines loaded with guns and ammunition. The British Darwinists employ fabricated animals as their weaponry. The Leviathan is a living airship, the most formidable airbeast in the skies of Europe.

Darcy Patel has put college on hold to publish her teen novel, Afterworlds. With a contract in hand, she arrives in New York City with no apartment, no friends, and all the wrong clothes. Woven into Darcy's personal story is her novel, Afterworlds, a suspenseful thriller about a teen who slips into the "Afterworld" to survive a terrorist attack. The Afterworld is a place between the living and the dead, and where many unsolved - and terrifying - stories need to be reconciled. Like Darcy, Lizzie too falls in love - until a new threat resurfaces....

A year ago, Cal Thompson was a college freshman more interested in meeting girls and partying than in attending biology class. Now, after a fateful encounter with a mysterious woman named Morgan, biology has become, literally, Cal's life. Cal was infected by a parasite that has a truly horrifying effect on its host. Cal himself is a carrier, unchanged by the parasite, but he's infected the girlfriends he's had since Morgan. All three have turned into the ravening ghouls Cal calls Peeps. The rest of us know them as vampires.

Tally is about to turn sixteen, and she can’t wait. In just a few weeks, she’ll have the operation that will turn her from a repellent ugly into a stunningly attractive pretty. And as a pretty, she’ll be catapulted into a high-tech paradise where her only job is to have fun. But Tally’s new friend Shay isn’t sure she wants to become a pretty. When Shay runs away, Tally learns about a whole new side of the pretty world—and it isn’t very pretty. The authorities offer Tally a choice: find her friend and turn her in, or never turn pretty at all. Tally’s choice will change her world forever.

Ever wonder who was the first kid to keep a wallet on a big chunky chain, or wear way-too-big pants on purpose? What about the mythical first guy who wore his baseball cap backwards? These are the Innovators, the people on the very cusp of cool. Seventeen-year-old Hunter Braque's job is finding them for the retail market.

On her 17th birthday, Ashen Spencer is blindfolded and escorted to the massive, mysterious building known as the Arc to begin her year of training and testing in hopes that she can earn the Cure - a powerful drug given only to those deemed worthy to survive beyond their 18th birthday. Ashen has a chance to rise up from her former life of squalor and be granted a place in society, if the Panel - the mysterious group of powerful men and women in charge of the Arc - deems her year a success.

Earth has been invaded by a species that takes over the minds of human hosts while leaving their bodies intact. But Melanie Stryder refuses to fade away.

STOP. You should not have touched this flyer with your bare hands. NO, don't put it down. It's too late. They're watching you. My name is David Wong. My best friend is John. Those names are fake. You might want to change yours. You may not want to know about the things you'll read on these pages, about the sauce, about Korrok, about the invasion, and the future. But it's too late. You touched the book. You're in the game. You're under the eye. The only defense is knowledge. You need to read this book, to the end. Even the part with the bratwurst. Why?

A deadly and unprecedented virus is spreading. But those who survive it experience long-term effects no one has ever seen before: utter contentment. Soon after infection, people find the stress, depression, greed, and other negative feelings that used to weigh them down are gone. More and more people begin to revel in the mass unburdening. But not everyone. People in power—who depend on malcontents and prey on the insecure to sell their products, and convince others they need more, new, faster, better everything—know this new state of being is bad for business.