We’re just a little under half a year away from the release of Fantastic Beasts: The Crimes of Grindelwald , the sequel to 2016’s Harry Potter prequel spinoff Fantastic Beasts and Where to Find Them , but author J.K. Rowling has revealed via her official website that she is already hard at work on the script for the third instalment of the planned five-part series.“I’ve just finished the fourth Galbraith novel, Lethal White, and I’m now writing the screenplay for Fantastic Beasts 3,” said Rowling. “After that I’ll be writing another book for children. I’ve been playing with the (non-Harry Potter/wizarding world) story for about six years, so it’s about time I get it down on paper.”Rowling also went on to discuss how much input she has into the Fantastic Beasts movies in her capacity as both screenwriter and producer, stating that: Warner Bros and David Yates