This was in between Harry Potter and the Goblet of Fire and Harry Potter and the Order of the Phoenix, and who wouldn't have wanted a slice of that sweet Potter pie? Unfortunately for Nancy Stouffer-I'm sorry, that's 'N.K.' Stouffer on her republished books by sheer coincidence, I'm sure-her claims were prima facie absurd. Rowling for copyright and trademark infringement over use of the word 'Muggles' and other matters. Maybe you've heard of this book, first self-published in some form in 1984, or its author who in 1999 tried to sue J.K.
There's the story, and there's the story behind the story.