Final answer:
The book 'Diary of a Wimpy Kid: Rodrick Rules' is a humorous account of Greg Heffley's middle school experiences and his struggles with his older brother, Rodrick who knows an embarrassing secret about him.
Step-by-step explanation:
Diary of a Wimpy Kid: Rodrick Rules is the second book in Jeff Kinney's Diary of a Wimpy Kid series. The story revolves around the protagonist, middle schooler Greg Heffley, navigating the complexities of growing up with the added challenge of dealing with his older brother, Rodrick. After an embarrassing incident over the summer, Rodrick knows one of Greg's secrets and has the power to ruin his social life, leading to a series of comic misadventures.
The brothers eventually reach a form of a truce when Greg agrees to cover for Rodrick about a party that went wrong. Despite the constant sibling rivalry, the book explores themes of family dynamics and the trials of middle school life in a humorous manner.