A ​Sky Beyond the Storm by Sabaa Tahir 

The long-imprisoned jinn are on the attack, wreaking bloody havoc in villages and cities alike. But for the Nightbringer, vengeance on his human foes is just the beginning. At his side, Commandant Keris Veturia declares herself Empress, and calls for the heads of any and all who defy her rule. At the top of the list? The Blood Shrike and her remaining family… Read more.