User blog comment:Dracomalfoyisawsome9/Albus Dumbledore/@comment-28293237-20160605203320

Yes, he was a necessary death. If he was still alive by the time of the Deathly Hallows, things would have been too different. Harry and his friends had to go on a journey which would have been far too easy if the wiser Dumbledore had been around. Hogwarts would never have been taken over and Voldemort would never have gone near the school if Dumbledore had lived. Dumbledore's death also allowed Snape to become one of Voldemort's most trusted advisors, making him an unknown spy for Harry which was also needed. For the purposes of the story, yes he had to die. The underlying message Jo was trying to get across was that even the most powerful can fall. No one is invincible, not even Dumbledore. The story would never have really moved on if Dumbledore had lived.