Well, 'noticed' is another word for'seen'. When it comes to 'novel', 'original' is a great alternative. The word'seen' implies the act of visually perceiving something, and 'noticed' has a similar meaning but might imply a bit more of an awareness. 'Novel' means new and different, and 'original' also gives the sense of being new and not a copy.
It's really hard to say a specific one as there are so many different children's stories. For example, in 'The Little Red Riding Hood', the penultimate word could be 'grandma' depending on the version. But generally, it varies greatly from story to story.
Haunting narratives. Ghost stories are often about things that are spooky and haunting, so these words can be used to describe them in a different way. For example, a 'haunting narrative' might imply a story that stays with you long after you've heard it, much like a good ghost story does.