Folk of the air

"Jude was seven years old when her parents were murdered and she and her two sisters were stolen away to live in the treacherous High Court of Faerie. Ten years later, Jude wants nothing more than to belong there, despite her mortality. But many of the fey despise humans. Especially Prince Cardan, the youngest and wickedest son of the High King. To win a place at the Court, she must defy him--and face the consequences." --back cover

"As the exiled Queen of Faerie, Jude must travel back to Elfhame to help her twin sister, Taryn, and uncover how to break a dark curse threatening the whole Faerie world"--Provided by publisher.