Anyway, you get off-topic in the middle of the paragraph. Instead of describing the premise of the book, describe its narrator and how he/she is subjective.

Watch your grammar, too. (But you need to revise it, so there’s no point in suggesting grammar revisions yet).

because he/she is in the story,

and can only speak to his/her experience within it.”

Issues with the paragraph

your example is not clear. You arte talking about a book give a summary of the main idea but it is not an example of a subjective narrator. A more appropraite example of a Subjective Narrator would be from Meg Cabots Princesss Daries when all you see is Mia point of view an dthere is not any other character devlpment besides how Mia sees the persons actions and the only time there is a shifting view point is if the narrator sees it. You need to give examples from the text of narraors point of view and why you find it questionable.

Symantic issues:

Check verb tense i.e. Killed instead of kill in thrid line

Underline or italicize your tittles of books.

You need a conculsion