No,she worked by herself on all of her books.
J.K. Rowling has said that she is not currently writing any new hp books, but has not ruled out writing more in the future.
No, JK Rowling's books are all purely fictional.
Im sorry to say but no, he stricly resists to writing any more books.
Rowling will not write any more Books.
Because she was writing about Harry Potter's time in Hogwarts and they only went to school at Hogwarts for 7 years and she wrote 7 books. There wouldn't be much point in writing any more books
Any time she can.
Nothing that has been announced.
I don't think she made any announcement to that effect. I assume, until she dies, or is too old or sick to continue writing.
I don't think House of Anubis has any books (sorry), but you may like the Harry Potter books by J.K. Rowling :)
J.K Rowling doesn't make movies she writes books and she hasn't had any more books that have been turned into movies after Harry Potter.
The Harry Potter series is Copywritten, so no there should not be. If there are, J.K. Rowling and her lawyers will sue them.
No, there are seven books in the main series and three accompanying books. J.K. Rowling does not plan to write any more of the series.