This grade 4 thriller fiction reading unit (level S) is about a rude boy who goes through a terrifying change and learns that being rude is not the right way to behave. Students learn about thriller fiction as a literary genre and do a literary analysis that focuses on idioms. The unit contains teacher support pages, a reading selection with supporting illustrations, and activities to guide students in close reading of the text. Students also gain practice applying topic and academic vocabulary. The unit concludes with a reading comprehension activity and a text-based writing activity.