The Legend of Rah and the Muggles is a children's book written and published by Nancy Stouffer (now referring to herself as "N.K. Stouffer") in the mid-1980s. The book languished in obscurity until 1999, when Stouffer sued J. K. Rowling (author of the wildly popular Harry Potter book series) for intellectual property damages, claiming that Rowling had stolen elements from Rah and used them in the Potter books without permission, primarily the use of the word "muggles". The subsequent lawsuit was eventually laughed out of court, as Stouffer was unable to verify her claim that she originally trademarked the term.