Faith Spiritwolfe - Aria Towards Destruction - The Sister's Affinity

Faith thought finding out about her true origins and battling a revenge-seeking demon would be the most shocking thing she'd face in her junior year of high school. But the year is not over yet and Alexander Prep has more surprises in store for the young firestarter. Winter term starts with a bang when her ex-boyfriend Mitch shows up for a visit just when her relationship with Lex is starting to get serious and dangerous.
They have difficult tasks ahead of them; they each have to bring down the demon coven *GARGOYLE* from within while pretending to other people. As if Faith didn't have enough on her plate, Mitch can't seem to let go and Lex's pull to his demon side is bringing out the worst in him. And unbeknownst to any of them, Faith has another more risky task, getting to know her real father while her real half-sister is hell-bent on destroying her for everything Faith represents.