The Eighth Story. Nineteen Years Later. Based on an original new story by J.K. Rowling, Jack Thorne and John Tiffany, a new play by Jack Thorne. Based on an original new story by J.K. Rowling, Jack Thorne and John Tiffany, a new play by Jack Thorne, Harry Potter and the Cursed Child is the eighth story in the Harry Potter series and the first official Harry Potter story to be presented on stage. The play will receive its world premiere in London's West End on 30th July 2016. It was always difficult being Ha