It sounds like you're referring to a "piece" (perhaps an article, video, or review) about Harry Potter and the website — which is a Vietnamese site known for hosting movies and TV series, often including the Harry Potter series.
: Look for official Harry Potter fan groups on social media or forums like Reddit. These are great for discussing the movies, finding viewing parties, or getting recommendations for similar movies. Harry Potter Phan 2 Phimmoi.net
The story begins with Harry Potter returning to the Dursleys for a miserable summer, only to be rescued by his best friend, Ron Weasley, in a flying Ford Anglia. Upon returning to Hogwarts, the atmosphere is tense. A mysterious message written in blood on the castle walls declares: "The Chamber of Secrets has been opened. Enemies of the Heir, beware." It sounds like you're referring to a "piece"