Chamber of Secrets

Connection to Harry Potter and the Half-Blood Prince

Chamber of Secrets has many links with the sixth book of the series, Harry Potter and the Half-Blood Prince. In fact, Half-Blood Prince was the working title of Chamber of Secrets and Rowling says she originally intended to present some "crucial pieces of information" in the second book, but ultimately felt "this information's proper home was book six". Some objects that play significant roles in Half-Blood Prince first appear in Chamber of Secrets: the Hand of Glory and the opal necklace that are on sale in Borgin and Burkes; a Vanishing Cabinet in Hogwarts that is damaged by Peeves the Poltergeist; and Tom Riddle's diary, which is later revealed to be a Horcrux. The plot of Half-Blood Prince also strongly features a motif of a mysterious book that conveys information both useful and dangerous (Professor Snape’s old Potions textbook from his time in school). Additionally, these two novels are the ones with the most focus on Harry's relationship with Ginny Weasley.