Crumpets for Tea

Now that Millie is human again she has not forgotten that she met the wizard Algenon.
A prominent wizard comes to the school for a lecture. Millie and Ethel are banned as punishment for their feuding. Millie tries to convince her friends to switch places with her or at least take her frog to the lecture so that he can change her frog back to a wizard.
When they won't do that Mildred tricks Drizzila into coming into her room and then ties her up and takes her place in the Great Hall where the lecture is being taken.
Ethel finds Drizzila tied up in Millie's room and they rush down to the Great Hall to catch Mildred red handed. They burst in when the wizard is trying to teach Maude a new spell and tell on her. She is forced to confess why she came to the great hall. She gets her frog turned back into a human. When asked what she wants as a reward she asks for crumpets since her frog wizard told her that he missed that the most.

Next episode

S02E05 - The Inspector Calls