All Winterton children wish for the Choosing day to come quickly. Their parents dread it. For this is the day when 2 girls and 2 boys are chosen to become Angels and Ravens. They are taken to the School of Evil and Purity. But this year, it's all gone a little bit...weird. When a "good" girl goes the bad side, and a girl who's Mother had started packing her witchery kit 3 months before ends up in the good side... well, what will happen next?