In a dark mirror

"Twelve-year-old Maddie Thompson and her friend Lana share a love of horror stories and wild imaginings. But Lana insists they are too old for pretending. It's time for a different game: serving Him, a figure she sees lurking in the dark, mysterious and demanding. According to Lana, she and Maddie must obey Him or else suffer the consequences. Maddie doesn't want to lose her most important friendship, even if it means luring an innocent girl into...