Emily Webb is a geek. And she’s happy that way. Content hiding under hoodies and curling up to watch old horror flicks, she’s never been the kind of girl who sneaks out for midnight parties. And she’s definitely not the kind of girl who starts fights or flirts with other girls’ boyfriends. Until one night Emily finds herself doing exactly that . . . the same night one of her classmates—also named Emily—is found mysteriously murdered. The thing is, Emily doesn’t know why she’s doing any of this. By day, she’s the same old boring Emily, but by night, she turns into a thrill seeker. With every nightfall, Emily gets wilder until it’s no longer just her personality that changes. Her body can do things it never could before: Emily is now strong, fast, and utterly fearless. And soon Emily realizes that she’s not just coming out of her shell . . . there’s something much bigger going on. Is she bewitched by the soul of the other, murdered Emily? Or is Emily Webb becoming something else entirely—something not human? As Emily hunts for answers, she finds out that she’s not the only one this is happening to—some of her classmates are changing as well. Who is turning these teens into monsters—and how many people will they kill to get what they want?

Emily Webb thought life would return to normal after the death of the man who attacked her and her fellow “Deviants.” Or as normal as it could be, after discovering that she has nighttime superpowers . . . and she’s a werewolf. But when Emily awakes one night to find an otherworldy Shadowman watching her, she knows the danger has only just begun. So Emily and her pack-mates set out to find the people who made them what they are, and why. But as they get closer to the truth, they realize they aren’t the only ones in town with special powers: The most popular girls in school might just have a secret of their own–and they might just have it out for Emily. With shadowy beings stalking them, a mysterious company doing all it can to keep the truth hidden, and the secrecy of her new identity in jeopardy, life threatens to spiral out of control for Emily. Soon these dangers will come together in one terrifying confrontation that may force her to make the toughest choice of her life . . . so far.

The war against BioZenith is on. Since she first came into her mysterious new superpowers, Emily has watched one of her packmates disappear through an interdimensional portal; she’s been hunted by creepy, body-snatching Shadowmen; she’s managed to form an alliance with the same telekinetic cheerleaders who once tried to take her down; and she’s discovered that her believed-to-be-dead mother is one of the BioZenith scientists responsible for her strange abilities. Now it’s up to the Deviants to put together the last pieces of the puzzle, which includes tracking down the final, mystery member of their kind and forcing their parents to reveal why they mutated their own children. Emily fears the answer is far more sinister than anyone ever thought: after all, why would a parent risk a child’s life unless the stakes were high... scary, world-ending high? Tired of being at the mercy of adult conspiracies, Emily forms a plan with the other Deviants: Destroy BioZenith before anyone can use the knowledge within the facility to aid the Shadowmen. But that’s only if BioZenith—or something worse—doesn’t capture them first.