Harry Reflects on His Connection with Lord Voldemort
Pages 381-382
After Quidditch practice, Harry discusses his scar pain with Ron, realizing that he is somehow sensing Lord Voldemort's emotions. Harry recalls that his scar hurt in Umbridge's office and at Grimmauld Place because Lord Voldemort was feeling strong emotions, either anger or happiness. Ron suggests that Harry should inform Dumbledore about this connection.