Answer:
In this text, foreshadowing is used to keep the reader interested and prevent any potential disappointment. The narrator describes his or her feelings about returning to Aunt Gertrude's home at the beginning of the story. Because it is compared to a fairy tale, it initially seems like the atmosphere is very pleasant, but then it changes, giving the reader the impression that something bad is about to happen. The mention of the "fairy tail" could be connected to Gertrude's kind act toward the orphans and her mood swing with the impending revelation of the secret.