Which J.K. Rowling book was published in 2016 as the script of a Harry Potter stage play?

Harry Potter and the Cursed Child was published in 2016 as the script of a Harry Potter stage play.

The story is credited to J.K. Rowling, John Tiffany, and Jack Thorne, with Thorne writing the published script. It begins nineteen years after the events of Harry Potter and the Deathly Hallows and follows adult Harry Potter, now working at the Ministry of Magic, and his son Albus Severus Potter.

The play also focuses on Scorpius Malfoy, the son of Draco Malfoy. Albus and Scorpius become friends at Hogwarts, and their actions lead to a time-travel crisis involving earlier events. The original stage production opened in London’s West End in 2016.

The published book is a script, not an eighth conventional Harry Potter novel written in the same narrative format as the seven novels. This distinction matters because “Cursed Child” is often casually called book eight, although Rowling’s original novel sequence ends with Deathly Hallows.