哈利波特.....

While home with Dursleys for the summer, Harry is visited by Dobby, a house elf, who warns him he will be in mortal danger if he returns to Hogwarts. Harry is determined to return despite Dobby's dire warning. Dobby, seeing that he will have to use force, decides to drop a pudding on the Mrs. Mason's head. Harry is blamed by the Ministry of Magic for Dobby's charm, and is told that if he does Magic outside of school again, he will be expelled. The Dursleys, upon learning that he cannot do magic outside of school, have locked away Harry’s books and wand, and Mr. Dursley screwed on bars to his window, making him a prisoner, but the Weasley brothers (Fred, George and Ron) rescue him in their dad's flying car. After a pleasant summer together, everyone heads to Platform 9¾ to take the Hogwarts Express back to school. But Harry and Ron are unable to enter through the magical barrier between platforms 9 and 10. In desperation, they fly to Hogwarts in the car (although how they enter the wizarding world remains unknown), crashing into the Whomping Willow and damaging Ron's wand. The semi-sentient car ejects them and their belongings and disappears into the Forbidden Forest.

Harry soon finds he is the unwanted center of three people's attention: the vain new Defence Against the Dark Arts Professor Gilderoy Lockhart, a wizard perpetuating his own legend; admirer Colin Creevey, a young first year Gryffindor who endlessly takes Harry's photo; and Ron's sister, Ginny Weasley, who has a crush on Harry. Events take a bad turn when the Chamber of Secrets is opened and a monster stalks the castle, which literally petrifies several students. According to legend, the Chamber was built by Salazar Slytherin and can only be opened by his heir to purge Hogwarts of students who are not pure-blood wizards. Many suspect Harry is the heir, especially after he inadvertently speaks Parseltongue (the language of snakes), a rare ability Harry gained after Voldemort's murderous attack when Harry was an infant. Harry, Ron, and Hermione attempt to discover the Heir of Slytherin's true identity. Using Polyjuice Potion brewed by Hermione, they disguise themselves as Slytherin students, Crabbe and Goyle, hoping to learn from Draco Malfoy who the heir is, although he does not know. Unfortunately, Hermione mistakenly adds cat hair instead of human to her potion and assumes a feline appearance, and it takes a little more than a month to restore her normal human appearance.

Harry Potter and the Chamber of Secrets