The summer before her 5th year at Hogwarts, Lilith "Scarlett" Moon visits her mother, who is a housekeeper at Malfoy Manor. (Yes, they also have house elves, but Narcissa wanted a fellow human to keep things running smoothly, as well as provide companionship when her husband goes away on business). Trying to keep it as something that could be plausible in the books/movies.