An enchanting new adventure for Jessica, everyone's favourite Witch-in-Training, and her teacher Miss Strega. "Prrrrrrooom," Jessica purred, in a very pleased voice. "I'm a cat." Jessica is learning the Witch Switch - how to magically change shape. But although being a cat can be great fun, it's also a tiny bit scary. What happens if a Witch Switch goes wrong! Meanwhile, what happens if an Ordinary Person finds out about the goings on at Miss Strega's shop?