The Trio Searches Regulus's Room for the Horcrux
Pages 187-189
Harry, Ron, and Hermione search Regulus's room for the Horcrux locket. The room is filled with Slytherin banners and memorabilia reflecting Regulus's loyalty to the Black family and Lord Voldemort. They use magic to summon the locket, but it does not appear. After a thorough search, they realize that the locket is not in the room.
