Nightweaver

This New York Times bestseller is filled with elemental magic, forbidden romance, and breathtaking twists, Nightweaver is a propulsive romantasy about an iron-willed heroine avenging her brother and discovering her destiny—perfect for fans of Powerless and Heartless Hunter.
Six hundred years ago, Nightweavers, cursed beings with untamed power, claimed the continents for their own. The ocean was meant to be a safe haven for humanity, including seventeen-year-old Aster Oberon and her pirate family. But after Aster’s brother is killed in an epic battle at sea against Nightweavers, Aster and her family are thrust into a new life on land.  

When a handsome Nightweaver named Will offers the Oberons protection and work at his opulent estate, Aster is suspicious. As the arrogant and entitled right hand to the wicked prince, Will is everything that she has been taught to hate. But as he shows empathy and kindness, Aster can’t ignore a blooming attraction. And even more, Will opens her eyes to a new reality: There are monsters worse than Nightweavers, monsters who may be behind her brother’s death. 
 
As Aster hunts the creatures responsible, dark secrets threaten to unravel everything she once believed about her family, herself, and her world. 

The Nightweaver series:
Nightweaver
Starchaser