Dumbledore sighed heavily, "I will not lie to you, Mister Malfoy - Harry was very near to death this evening," he said gravely, "The wound at his neck effectively severed his carotid artery, the main vessel that supplies the brain with blood, and therefore oxygen. Even with the blood replenishing potions, Harry’s brain was starved of oxygen until your’s and Fawkes’ joint efforts healed the injury. It is this damage to Harry’s brain that will take some time to heal, but it will heal, I have been reassured so by the healers from Saint Mungo’s,"