Patrick saved a little doll from his cat. That doll was, in fact, a very small sized man, an elf. He was timid. The elf felt grateful to his saviour. In return, he promised to grant Patrick a wish. He could not say 'no' to any of Patrick's requests. He agreed to do Patrick's homework, but pretended that he did not know the answers. He was not good at many a subject. He sought Patrick's help at every step.