S02:E10 - Up in the Air

Frank's nephew Charlie has arrived for a visit to Cackles. He's fed up with his own school and jealous of the fun the girls seem to have at the Academy, so he persuades his uncle to ask if he can become a pupil at the Academy. Miss Drill seems sympathetic to the request but Miss Hardbroom is dead set against it. Leaving Miss Cackle wondering if it might not be time for the Academy to go coed.