I Have An Idea For A Game Please Tell If This Is Already Something. You Are Pert In A Book And Whoever

I have an idea for a game please tell if this is already something. You are pert in a book and whoever has the book you control, and the reason you are there is because the world was so boring. There was no conflicts at all before you came around and there is this girl who is the original owner of the book and she is the one asked you to to create some mischief but don't go over bord there will be consequences. This wold will be runed by a peaceful creacher that I don't have a name for but I do have an idea for a design I also don't have a name for the game but I do have a place holder for now it being called "the book". Please tell me if this is already something and if not can I have some help with bringing it to life I am willing to do all of the art for it and I have a coup of dialog ideas but as you probably can tell by now I can't spell