This is book number 1 in the Dark Elements series.
BOOK ONE OF THE FANTASTICAL DARK ELEMENTS SERIES
ONE KISS CAN KILL Layla just wants to be normal--fit in at school, go out on real dates and do other typical teenager things. Trouble is, Layla is anything but normal and her longtime crush, Zayne, treats her like a little sister. Half demon, half gargoyle, Layla has abilities that no one else possesses. And even though Zayne is a Warden, part of the race of gargoyles tasked with hunting demons and keeping humanity safe, Layla's kiss will kill anything with a soul--including him. Enter Roth--a smart-mouthed demon who claims to know her deepest, most dangerous secrets. Though Layla knows she should stay away, it's tough when that whole soul thing isn't an issue. Trusting Roth could brand her a traitor to the Warden family that raised her and destroy her relationship with Zayne. But with a violent demon uprising looming in the distance, kissing the enemy suddenly pales in comparison to the end of the world.