When sparks fly between a human and a Supernatural, the entire planet could be at stake.
 
It’s been ten years since the Great Extinction, when Supernaturals threatened to destroy humanity. Now, in the sleepy town of Wayside, Nevada, seventeen-year-old Cassie Grant’s life couldn’t be more ordinary. Determined to get into an Ivy League college, her focus is squarely on her studies. But suddenly everything changes when she witnesses Jason Taylor, a cute and quiet loner, mysteriously save a young boy from falling to his death.

Although the Supernaturals ultimately retreated to their planet, three families were left behind—including Jason’s. So far, they’ve been successfully hiding in plain sight. But Jason knows that if Cassie exposes him, all their lives will be in peril—especially since Cassie’s father is the head of the Alien Eradication and Defense Department. At first, befriending Cassie is Jason’s survival tactic. But as they spend more time together, they begin to fall in love. With the authorities closing in and a hidden threat that could tear the very Earth apart, can Cassie and Jason keep each other safe—or will their star-crossed romance start another war?...