Who ever heard of a witch and a monster being friends? Everyone knows that witches don't mix with monsters. Witches are educated, clever, sophisticated. But monsters? Monsters are just uncouth. Some are even dangerous. But Polly the witch and Buster the feelings monster have been best friends forever. It's the sort of friendship that makes your heart squeeze with happiness. Somehow, they've managed to keep their friendship a secret. Until one day, when everything changes ...