Now that she is 13 Sabrina's powers have grown stronger. Salem, Hilda, and Zelda work hard to train Sabrina so she can learn how to use her magic well. They also help her get out of tough scrapes because her spells often fail. Although she is half-mortal she is not the only one at her school who is a witch. Her new nemesis Cassandra attends Sabrina's school and is a full witch. Both Sabrina and Cassandra attend a special Witch Academy School at night to practice their magic.