"Another school year begins at the Younwity Hidden Institute of Witchcraft, and Abigail knows that this is the year she needs to buckle down, grow up, and start taking her studies seriously. One day, everything was exactly as it was supposed to be. And the next, the closest thing Abby ever had to a sister, Noreen, was just... gone. Distracted by the annual preparations for the Samhain festival, Abby's classmates are quick to put Noreen's disappearance...