Seven years on the run from her abusive father, Lark is out of options. Her only leverage is a cursed power: she can thrust fear onto others, leaving all threats fleeing in terror. Lark’s sole chance for refuge could lie in Cagmar, the city of trolls―a brutal species and the sworn enemies of humanity. Valuing combat prowess, the troll high council is intrigued. Lark's gift makes her invaluable as a monster slayer to fight off the unspeakable creatures that torment the trolls’ hanging city. But her new role comes with a caveat: use her power against a troll, and she’ll be killed. Her loyalty is quickly put to the test when she draws the hatred of a powerful troll who loathes humankind. Still, she finds unexpected friendship in the city and, even more surprisingly, love. But if everything else doesn’t undo her, being caught in the arms of a troll surely will...