Fox 2000 has bought rights to the upcoming Royce Buckingham novel Demon Keeper for a live-action film that will be produced by AEI's Ken Atchity and Chi-Li Wong, according to Variety. The young adult novel will be published by Putnam in the fall. The story focuses on a Seattle teen who inherits a house filled with mischievous demons. The youth has to keep his charges in the house and thwart the Thin Man, a creepy character who wants to free and exploit them for evil purposes. "Royce not only has written a story with a distinctly different theory of demons, he's created a multimedia franchise with 'Harry Potter' potential," Atchity said.