Carly Beth Caldwell is the main protagonist of the Goosebumps book The Haunted Mask and The Scream of the Haunted Mask, as well as playing a major role in The Haunted Mask II
When she was first introduced, Carly Beth used to be "scare-able" in other words, afraid of her own shadow and she had been the butt of mainly Chuck and Steve's jokes about it, much to her annoyance. This came to an end after her encounter with the Haunted Mask as she had become braver than before and she also learned to appreciate herself. She is also a bit negative about her appearance (mainly about her little stub of a nose). And she can still get annoyed with mean, practical jokes. She sometimes has the strangest reactions to some things as her mother would say. She is fond of the kindergarten children that she and Sabrina work with and can be as firm with them as she needs to be and also loves horses. She is very close to Sabrina and her mother and occasionally enjoys a good laugh with Noah. Despite being braver than before, Carly Beth can still have her limit, but always tries to be positive and has a kind, thoughtful and caring nature.
Carly Beth is twelve years old, Caucasian short and skinny, with a little pixyish face, long straight brown hair with bangs, brown eyes and a tiny stub of a nose. Despite her somewhat negative opinion on her physical appearance, she is actually attractive, as Abby Martin described her as "a pretty girl with straight brown hair."