Author JK Rowling has revealed the title of the sixth book in the Harry Potter series.
JK Rowling is one of the world's highest paid authors
The next book will be called Harry Potter and the Half Blood Prince.
As Rowling announced the news on her website, she also hit out at those who spread the rumour it was called Harry Potter and the Pillar of Storge.
She gave no indication of when fans can expect the next instalment of the boy wizard's adventures. There was a two year wait between books four and five.
The hardback version of the fifth book, The Order of the Phoenix, was released in June 2003, becoming the fastest selling book of all-time.
The paperback version will not be published until 10 July.
Writing on her website, Rowling said the only plot detail she would reveal was that Half Blood Prince did not refer to Harry or the evil Lord Voldermort character.
Rowling has previously said she had considered the title for the second book, but instead plumped for Harry Potter and the Chamber of Secrets.