Girl with the Gifts (Cyndarian Chronicals)

Transformation has a cost, and the price is everything she loves.
Aviana “Avi”, a perfume chemist, is about to earn the promotion she’s dreamed of. But when Pacific Perfume’s prized lavender oil is sabotaged, Avi becomes the convenient scapegoat.
Determined to clear her name, Avi plunges into a hidden world, forging unlikely alliances and drawing the attention of an enemy whose reach is ruthless and resolve relentless.
When her plan goes horribly wrong, she’s forced to partner with the last man she wants in her life: her ex-fiancé, Fritz.
Fritz can no longer keep his secret locked away: he isn’t human. She isn’t human.
They’re Grounders. And with each passing day, Avi’s dormant power, Slyfen, tests the limits of her control.
Fritz vies to stand by her side, but Avi must rise alone to become who she was never meant to be, for some truths burn hotter than fire.