Mistress is the sister of Governor Bellingham. After the novel's events, she is killed for being a witch. She repeatedly comes to the forest at night to find someone or something evil. She's constantly trying to get people to come and walk with her. By the way, Anne Hibbins was a real person in the Massachusetts Bay Colony. Probably this character is the one who helps to understand the novel better and more realistic. Real Anne as like the one from the book was executed as a witch in 1656. So, was she actually a witch? No one knows, the narrator keeps calling her like that but how to get the concrete answer? Guess the only author knows for sure.
Mistress Hibbins in the Essays
Author: Robert Burns