J.K. Rowling vanquished the forces of darkness Monday when a federaljudge permanently enjoined RDR Books from publishing "The Harry PotterLexicon," a guidebook to Rowling's best-selling series. U.S. DistrictJudge Robert Patterson Jr. blocked also ordered RDR to pay $6,750 instatutory damages.

Steven Jan Vander Ark, a librarian andHarry Potter fan, thus cannot publish his guide to Rowling's series,for which he said there was a considerable demand. Warner Bros., whichmade the Harry Potter movies, joined Rowling in suing for copyrightviolations.

The ruling came 5 months after a 4-day trial,during which Rowling described the "Lexicon" as "wholesale theft of 17years of my hard work."

The next day at trial, Vander Ark sobbed on the stand, clearly upset that he had annoyed Rowling.

Judge Patterson found that RDR Books "failed to establish its affirmative defense of fair use."