These infinite threads - VO

de Tahereh Mafi - 

With the heat of a kiss, the walls between Alizeh, the long-lost heir to an ancient Jinn kingdom, and Kamran, the crown prince of the Ardunian empire, have crumbled. And so have both of their lives.

Alizeh, the heir to the Jinn throne, is destined to free her people from the half-lives they’ve been forced to live under human rule. When Kamran, the heir to the human throne, falls in love with her, he’s forced to question everything he’s been taught about Jinn.

Kamran’s grandfather lays dead at the hand of Cyrus, ruler of the neighboring kingdom of Tulan. Cyrus has stolen Alizeh away to his homeland and plans to marry her there, giving her everything she needs to become the Jinn queen—and when she assumes the throne he will have fulfilled his own bargain with the devil.