however, in 2003, a british law firm representing j.k. rowling and warner bros. sent a letter to webmasters requesting that adult harry potter fan fiction ("stories containing graphically violent and sexual content") be removed from a prominent fan fiction website, citing concerns that children might stumble upon the illicit content. in response, the webmasters from several websites hosting adult harry potter fan fiction, among other types of fan fiction, "made claims of 'fair use' and nonprofessional status" to justify their right to continue hosting the adult content.