Billed as the eighth instalment in the series, the play Harry Potter and the Cursed Child and a book based on its script have helped awaken a new wave of Pottermania five years since the previous episode was made into a movie.
Throngs of fans crowded bookstores for the midnight release of the book, hours after the play in London's West End theatre district dazzled theatre-goers with swishing capes, billowy wraiths floating overhead and illusionist tricks of actors appearing to vanish into thin air.
Asked if the book and play heralded a new phase of stories, Rowling told Reuters: "No, no."
"He goes on a very big journey during these two plays and then, yeah, I think we're done. This is the next generation, you know," said Rowling, who later appeared on stage during a standing ovation at the end of the show. "So, I'm thrilled to see it realised so beautifully but, no, Harry is done now."
Based on a story by Rowling, playwright Jack Thorne and director John Tiffany, Cursed Child picks up the story 19 years later, featuring Potter as a 37-year-old overworked employee of the Ministry of Magic and father of three.
