For Harry Potter [Images] fans, this one's as tantalising a teaser as Albus Dumbledore smiling when he learns that Lord Voldemort has used Harry's blood to regain his body.

Author J K Rowling has said 'never say never' in response to a global campaign launched by fans to 'Save Harry.'

'It's not saying that she definitely is [going to write another book] and it's not saying that she definitely isn't. I cannot comment further,' a spokesman for the author was quoted as saying in newspaper reports, including in London's [Images] Telegraph.

The Magic of Harry Potter

All over blogs, discussion groups and fan sites, debate has been raging on whether Harry Potter will die in the seventh -- and what was mentioned by Rowling as the final -- Harry Potter book, Harry Potter And The Deathly Hallows, which will be published on July 21.

Popular theories trying to second-guess Rowling include Harry being a Horcrux (magical pieces of an evil wizard's soul) himself, and the two characters who will die being Hagrid and Hermione. But then, Rowling has been rather good at second-guessing second-guessers so far.

Harry Potter And The Order Of The Phoenix: Some magic at last!

The Save Harry campaign has been launched by booksellers Waterstone's who are arguing that there is a literary precedent -- the case of Sherlock Holmes.

Previously, Rowling has said that the Harry Potter story will end with book 7 (Deathly Hallows) and that she might write a spin-off book like explaining magical spells and creatures mentioned in the Potter books.

But to BBC in a recent interview, she also said, 'Never say never.'