Harry spoke as they circled, and stared into each other's eyes, green into red. "You won't be able to kill any of them ever again. Don't you get it? I was ready to die to stop you from hurting these people--"
"But you did not!"
"--I meant to, and that's what did it. I've done what my mother did. They're protected from you. Haven't you noticed how none of the spells you put on them are binding? You can't torture them. You can't touch them. You don't learn from your mistakes, Riddle, do you?"
“It means that though the Witch knew the Deep Magic, there is a magic deeper still which she did not know. Her knowledge goes back only to the dawn of time. But if she could have looked a little further back, into the stillness and the darkness before Time dawned, she would have read there a different incantation. She would have known that when a willing victim who had committed no treachery was killed in a traitor's stead, the Table would crack and Death itself would start working backwards.”
"The realm of Sauron is ended!" said Gandalf. "The Ringbearer has fulfilled his Quest." And as the Captains gazed south the Land of Mordor, it seemed to them that, black against the pall of cloud, there rose a huge shape of shadow, impenetrable, lightning-crowned, filling all the sky. Enourmous it reared above the world, and stretched out towards them a vast threatening hand, terrible but impotent: for ever as it leaned over them, a great wind took it, and it was all blown away, and passed; and then a hush fell.