Grave of Words by Kathryn Ann Kingsley

Ember is a mortal in a world of demigods and monsters. But she is Under’s only hope at survival.

Under is besieged by flesh-eating corpses bent on destruction and commanded by an immortal madman out to destroy the world. And the only thing between him and his goal of utter annihilation…is Ember.

In a terrible twist of fate, the deranged King of Poison has become her prisoner. The wayward hunter now finds herself caught between two warring forces—the living and the dead. The choice should be easy. But the more time she spends with Rxa, the more she begins to question her resolve.

Because the real war is about to begin. And it is between her head…and her heart.