Last week Harry Potter author J.K. Rowling drove fans into a tizzy with this cryptic tweet: “Cry, foe! Run amok! Fa awry! My wand won’t tolerate this nonsense.” This led to a dizzying day of speculation before she revealed that it was an anagram referring to Newt Scamander and a new movie trilogy.

The film will be based on the 42-page textbook Fantastic Beasts & Where to Find Them that Rowling wrote as Newt Scamander for Hogwarts students. Scamander’s story is set 70 years before Harry Potter set foot in Hogwarts, so fans shouldn’t expect a glimpse of the lightning bolt scar or He Who Must Not Be Named. The film will follow magizoologist Scamander as he embarks on journeys to find magical creatures. It is slated to debut on November 18, 2016 with subsequent films tentatively planned for 2018 and 2020.

Though Rowling was an active part of the Harry Potter film process, this will be the first time she has written the screenplay based on one of her books. So far David Yates, who directed four of the eight Harry Potter films is reportedly directing the Newt Scamander movie. He may be reuniting the film team that also includes David Heyman, Steve Kloves, and Lionel Wigram.

Turning Rowling’s companion books into films is a no brainer. Harry Potter is still the most successful film franchise ever, having grossed 7.7 billion in global box office. It’s also rumored that Quidditch Through the Ages may be adapted as a film. No word yet on whether or not Rowling is writing a book about the adventures of Luna Lovegood or Ron and Hermione’s guide to parenting, but we can hope.