 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.