"You didn’t know? Dumbledore had made plans to ensure your loyalty, to ensure you would be bendable to his will. Boy, you needed to die, it was a "necessary sacrifice’ as Albus liked to call you." Harry shook his head and refused to believe it, but Alistar is a sentient being that isn’t allowed to lie, nor is it allowed to give information said in confidence, so why was he telling this to Harry now, was it because he was dead? He didn’t want to think about why and he didn’t want to believe the words coming from the hat, but why would he lie?