HBO Max is reportedly developing “It” prequel series, “Welcome to Derry,” which set in the fictional small town from the works of Stephen King.

Set in the 1960s, “Welcome to Derry” will take audiences back to the fictional town of Derry, Maine to focus on the events that led up to 2017’s It: Part One, which was based on the iconic horror novel by Stephen King. The story is also said to include the origin story of Pennywise the Clown.

Andy Muschietti, who directed “It: Part One” and 2019’s “It: Part Two,” is attached to executive produce the series along with his sister/producer Barbara Muschietti and Jason Fuchs. According to sources, Muschiettis developed the story with Fuchs and Fuchs wrote the script. Andy would also direct the first episode if the project goes into the series. Warner Bros. Television is the studio behind the project, since WB having produced the two films.

If the project is greenlit , it could become a series that rely on an existing WB film franchise. Another project would be focused on Colin Farrell’s limited “Penguin” series from “The Batman,” although a planned series about the Gotham PD (and Arkham Asylum) has stalled in development for now.

The two new “It” films collectively grossed over $1.1 billion at the global box office upon their release, with the first film taking place 27 years after the events of the first with a new adult cast taking over from the kids in part one. Stephen King’s “It” was previously adapted into a two-part miniseries for ABC back in 1990, featuring Tim Curry’s as Pennywise.

In 2019, IT and It Chapter Two director Andy Muschietti hinted at more IT when he told Gizmodo that there’s a “whole mythology to the book” about Pennywise, the trans-dimensional entity that has long haunted Derry. “Mythology is something that always has opportunities to explore. It has been on Earth for millions of years.

He’s been in contact with humans for hundreds of years, every 27 years. So you can imagine the amount of material,” Muschietti said at the time. “It’s always exciting to think of eventually exploring this mythology. It’s very exciting. But, for now, there’s nothing on the table.”

The Ankler first reported the series was in the works.