Belladonna

Belladonna is the main antagonist of the third book in the Goosebumps Hall of Horrors series, The Five Masks of Dr. Screem.

History
She was thought to be a protagonist, because she sought Monica's help to defeat Dr. Screem, but Screem reveals that Belladonna was the true villain.

Personality
Belladonna first came as a desperate, innocent woman who needed help. But later on, she was revealed to be vile.

Physical appearance
Belladonna was a pretty, young woman (possibly in her 30's) with straight black hair, round dark eyes, high cheekbones, and a warm smile. She wore a soft and flowy black dress that fell to her ankles like a nightgown.

Other Appearances

 * Belladonna is referenced in the Goosebumps story arc Horrors of the Witch House when Clarissa tags her on what appears to be the social media equivalent of Twitter for witches.

Trivia

 * This is similar to Ghost Beach when the kids thought that Harrison Sadler was a ghost, but the real ghosts were Sam, Louisa, and Nat.