The seven Harry Potter novels will be available in ebook form in October, author J.K. Rowling said on Thursday at the launch of a new interactive online website Pottermore (www.pottermore.com) that will allow readers to navigate through the boy wizard stories.

Rowling gave her clearest indication yet that she would not write an eighth Harry Potter story to follow the final installment published in 2007 by Bloomsbury in Britain and Scholastic in the United States.

I do have closure with Harry, Rowling told reporters in London at the launch of www.pottermore.com. I have no plans to write another novel. I'm pretty sure I'm done on the novel front ... But it was fun while it lasted.

The ebooks will be exclusively available on the Pottermore site from October in several languages. They will be available on all major electronic reading devices.

It is my view you can't hold back progress, Rowling said of the electronic launch.

Ebooks are here and here to stay. Later than a lot of people, I for the first time downloaded ebooks and it's miraculous for travel and for children in particular. I feel great about taking Harry into this new medium.

(Editing by Paul Casciato)