Harry Asks Lupin About the Half-Blood Prince
Pages 335-336
Harry asks Lupin if he knows anything about the Half-Blood Prince. Lupin is amused by the name and jokes that Harry already has enough titles, like “The Chosen One.” Lupin reflects on the popularity of the Levicorpus spell during his time at Hogwarts, but dismisses the idea that James or Sirius called themselves "Prince."
