Harry Potter and the Chamber of Secrets by J.K. Rowling

Harry Potter and the Chamber of Secrets is the second installment of the Harry Potter Series. Harry is in his second year and Voldemort is becoming stronger. In this book, he is trying to open the Chamber of Secrets which is used to get rid of all wizards of "muggle" descent. Ginny Weasley, Ron's little sister makes an appearance and Voldemort shows his original self as Tom Riddle when he was at Hogwarts through his diary.