Full of bitterness and resentment, Ethel is casting spells in anger - and slowly turning into an ugly swamp troll. Transformation complete, Cackles is in uproar at this hideous creature, and Miss Hardbroom banishes Troll Ethel to the forest. Is there still a shred of kindness inside Ethel which can save her, or is it too late?

Junior witch Mildred Hubble struggles to find her place at Miss Cackle's Academy. Children's fantasy drama, based on Jill Murphy's books of the same name, starring Bella Ramsey.