The playscript for Harry Potter and the Cursed Child was originally released as a 'special rehearsal edition' alongside the opening of Jack Thorne's play in London's West End in summer 2016. Based on an original story by J.K. Rowling, John Tiffany and Jack Thorne, the play opened to rapturous reviews from theatregoers and critics alike, while the official playscript became an immediate global bestseller.