Author J.K. Rowling sued the publisher of a "Harry Potter Lexicon" which was drawn on material from the fan-created Harry Potter Lexicon Web site, prompting him to voluntarily delay its release scheduled for Nov. 28. Michigan-based US publisher RDR Books has decided to hold off printing the book after Rowling and US film studio Warner Brothers filed action at the end of October. Rowling claims the book violated her copyright.

"I feel massively disappointed that this matter had to come to court at all," Rowling said. "Given my past good relations with the Lexicon fan site, I can only feel sad and disillusioned that this is where we have ended up."

After publisher Roger Rapoport of RDR Books announced his voluntary hold on the book, he was granted by a New York judge more time to react to the legal action, and the next court hearing is scheduled for the beginning of February.

The author of the lexicon is Steve Vander Ark, who has already published a major online lexicon on the famous boy wizard. Rapoport said the publishing house had "every right" to publish the lexicon and would react to legal action accordingly. "I think they should drop it. I'm hopeful that they will," he said.

"Harry Potter" author J.K. Rowling recently finished writing another book, a set of children’s stories entitled "The Tales of Beedle the Bard," which are mentioned in the seventh novel, "Harry Potter and Deathly Hallows." Since wrapping up the final Harry Potter book, the British author took no time off, in fact she has been working on a new book, a collection of wizard fairy-tales which she handwrote and illustrated herself.

The book was a "wonderful way" to say goodbye to Harry Potter, whose story took Rowling seventeen years to complete.