He continued, ” always wanted to end this scene with a thing he said to his captors, a comeback that struck me as unnecessary, and somewhat inane.”

He explained that Harry wanted to end the scene that way because “all his life, people had belittled his intellectual capabilities, and this flash of cleverness proved that, even after being kicked and punched and deprived of sleep and food, he had his wits about him.”

However, Moehringer asked the prince to trust him with the story and told him that he still wouldn’t be including that comeback because memoir is “a story carved from your life, a particular series of events chosen because they have the greatest resonance for the widest range of people, and at this point in the story, those people don’t need to know anything more than that your captors said a cruel thing about your mom.”

Source: https://www.buzzfeed.com/kristenharris1/celebrity-ghostwriters-speak-out