@kookisgguk no, an adaptation is a story based on an existing book, film or series. The characters already exist, as does the world they live in, and you make up new adventures for them. When I dislike the way a book or series is heading or its ending, I often change it in my mind. Or maybe I want to know how it goes on after the official story ends. And then sometimes I publish the result here, though I have plenty of stories no-one has read but myself.