Hazel is a trainee witch. She has extraordinary friends: Batrach, a talking frog, Oakman, the amiable guardian of the forest who dresses and behaves like a dandy, and Agatha, her mentor and head of the witch order. Hazel's job doesn't seem exciting at first - she has to take care of the ever-increasing dwarf population in her area. But things take an unexpected turn when Batrach is imprisoned in a fairy ring and she has to use all her skills and knowledge to set him free. In her search for a solution, she has to cajole grumpy leprechauns, fairies with sharp tongues and poor manners, and even encounter a demon.