Ethel thinks it's Mildred's fault that Sybil is always following her around, so when things go too far during a lesson of broomstick flying, Ethel vows to get her back. When Tabby falls off Mildred's broomstick, she is sent to her room with strict orders to make sure that the cat learns to properly sit on the broomstick. Frustrated, Mildred decides to take a nap, and when she awakes, she discovers that she's been turned into a frog. She escapes to find help but instead, Miss Hardbroom scoops her up and puts her in her handbag. Mildred thinks this is all Miss Hardbroom's doing, when she is unceremoniously dumped into a jar. Life as a frog is far from easy, so Mildred is greatly relieved when she manages to escape to the safety of the school pond. There she meets another frog - a wizard who has been enchanted so long ago that he can't even remember his own name. Mildred promises to get help as soon as she's restored to her old self. With a lot of effort, Mildred gets back to the school, where the others discover what has happened. When Ethel turns her back, she discovers it wasn't Miss Hardbroom that turned her into a frog. When Miss Hardbroom suddenly appears, she gets the shock of her life when Mildred is able to recite the precious contents of her bag.
—van_whistler@hotmail.co.uk