The Daughter of Light trilogy is… Coming of Age and Coming into Power
About Half Faerie:
As a half-faerie, Melia is an outcast in the enchanted world where she lives with her two sisters and full-blood faerie mother. Their father has been exiled to the mortal world for breaking his faerie troth. He’s determined to return to the Realm of Faerie by harnessing the power of Umbra–an accumulation of psychic ash which dwells in the Void.