Although the elf Dobby had hindered Harry Porter from coming back to Hogwarts, he still entered the 2nd year here. Strangely, he heard the strange voice that no one heard. Chamber of Secrets is opened again at Hogwarts, and several students died mysteriously. Students is fear and alien to Harry because he is suspected to be the culprit until Hermione is in jeopardy. Harry and Ron decide to enter the game, and Harry accidentally picked up the thinking diary.