In the trivia section, it is said that "This is the first Goosebumps book where the main character is being controlled by the villain."
What about The Haunted Mask?
The Horror of the Black Ring
I'm starting to think "The Horror of the Black Ring" was a title used for promotional material exclusively. I can't find a photo of any physical book with this title. Correct me if I'm wrong. GoosebumpsArt (talk) 22:06, December 25, 2019 (UTC)