White Hot Kiss - Jennifer L. Armentrout

From the author of From Blood and Ash, one kiss is enough to kill in this instant New York Times bestselling start to the Dark Elements series... Layla just wants to fit in at school and go on a date with Zayne, whom she's crushed on since forever. Trouble is, Zayne treats Layla like a sister—and Layla is a half demon, half gargoyle with abilities no one else possesses. And even though Zayne is a Warden, part of the race of gargoyles tasked with keeping humanity safe, Layla's kiss will kill anything with a soul—including him. Then she meets Roth—a demon who claims to know her secrets. Though Layla knows she should stay away, it's tough when that whole no-kissing thing isn't an issue. Trusting Roth could ruin her chances with Zayne, but as Layla discovers she's the reason for a violent demon uprising, kissing the enemy suddenly pales in comparison to the looming end of the world.