Mari and Francesca are sizars - poor students allowed to study witchcraft at Ermine College in return for menial work. Despite the few hours they can dedicate to reading and learning, they are both talented at magic, and determined to graduate. When some of their wealthier schoolmates invoke powerful magic laws to humiliate them, they unleash more than they bargained for. Can the sizars save the college? The future of Ermine College is at stake!