"Sister Anne" is a character from the classic fairy tale "Bluebeard," which is often attributed to Charles Perrault. In the story, she is the sister of the protagonist, Fatima, who is married to the mysterious and dangerous Bluebeard. Sister Anne plays a crucial role in the tale, as she is called upon to help her sister during a time of distress. In the narrative, Sister Anne is depicted as a loyal and supportive sibling. She is often seen looking out for her sister from a tower, symbolizing her watchful nature. Her character highlights themes of family loyalty and the importance of vigilance in the face of danger.