Obsession is a stand-alone novel that is an adult spin-off of the Lux Series. You do not need to read a Lux book to read Obsession and vice versa.

He’s arrogant, domineering, and... To. Die. For.

Hunter is a ruthless killer. And the Department of Defense has him firmly in their grasp, which usually doesn’t chafe too badly because he gets to kill bad guys. Most of the time he enjoys his job. That is, until he’s saddled with something he’s never had to do before: protect a human from his mortal enemy.

Serena Cross didn’t believe her best friend when she claimed to have seen the son of a powerful senator turn into something... unnatural. Who would? But then she witnesses her friend’s murder at the hands of what can only be an alien, thrusting her into a world that will kill to protect their secret.

Hunter stirs Serena’s temper and her lust despite their differences. Soon he’s doing the unthinkable—breaking the rules he’s lived by, going against the government to keep Serena safe. But are the aliens and the government the biggest threats to Serena’s life… or is it Hunter?

The Garde have suffered an unbearable loss. Number Five has betrayed them. Eight is gone forever. Ella has been kidnapped. The others are now scattered.

In Chicago, John makes the unlikeliest of allies: Adam, a Mogadorian who turned his back on his people. He has invaluable information about Mog technology, battle strategies, and weaknesses. Most important, he knows where to hit them: their command base near Washington, DC. During the assault, however, John and Adam learn the unimaginable truth: it is too late. The Mogadorians have commenced their ultimate invasion plans.

With a front-row seat to the impending invasion, Ella finds herself in the hands of the enemy. For some reason she's more valuable to them alive, and they'll stop at nothing to turn her.

Meanwhile, Six, Nine, and Marina make their way through the Florida Everglades, hot on the trail of the traitorous Five. With the development of a new Legacy, Marina finally has the power to fight back—if her thirst for revenge doesn't consume her first.

Two years ago, the aliens made contact. Now Cara Sweeney is going to be sharing a bathroom with one of them. Handpicked to host the first-ever L’eihr exchange student, Cara thinks her future is set. Not only does she get a free ride to her dream college, she’ll have inside information about the mysterious L’eihrs that every journalist would kill for. Cara’s blog following is about to skyrocket.

Still, Cara isn’t sure what to think when she meets Aelyx. Humans and L’eihrs have nearly identical DNA, but cold, infuriatingly brilliant Aelyx couldn’t seem more alien. She’s certain about one thing, though: no human boy is this good-looking.

But when Cara's classmates get swept up by anti-L'eihr paranoia, Midtown High School suddenly isn't safe anymore. Threatening notes appear in Cara's locker, and a police officer has to escort her and Aelyx to class. Cara finds support in the last person she expected. She realizes that Aelyx isn’t just her only friend; she's fallen hard for him. But Aelyx has been hiding the truth about the purpose of his exchange, and its potentially deadly consequences. Soon Cara will be in for the fight of her life—not just for herself and the boy she loves, but for the future of her planet.

On her 13th birthday, Jessica is lured into the forest by a strange spiral light. In the woods, she encounters three mystical LIGHTMASTERS, who convince her that she has unique magical gifts. Intrigued, Jessica is transported to another dimension where she is tested for her courage, faith, and strength. Follow Jessica as she conquers her fears and helps save Earth from a wicked alien enemy who hates humans.