Dumbledore’s betrayal was almost nothing

Dumbledore’s betrayal was almost nothing. Of course there had been a bigger plan: Harry had simply been too foolish to see it, he realized that now. He had never questioned his own assumption that Dumbledore wanted him alive. Now he saw that his life span had always been determined by how long it took to eliminate all the Horcruxes. Dumbledore had passed the job of destroying them to him, and obediently he had continued to chip away at the bonds tying not only Voldemort, but himself, to life! How neat, how elegant, not to waste any more lives, but to give the dangerous task to the boy who had already been marked for slaughter, and whose death would not be a calamity, but another blow against Voldemort.

And Dumbledore had known that Harry would not duck out, that he would keep going to the end, even though it was his end, because he had taken trouble to get to know him, hadn’t he? Dumbledore knew, as Voldemort knew, that Harry would not let anyone else die for him now that he had discovered it was in his power to stop it. The images of Fred, Lupin, and Tonks lying dead in the Great Hall forced their way back into his mind’s eye, and for a moment he could hardly breathe. Death was impatient…

But Dumbledore had overestimated him. He had failed: The snake survived. One Horcrux remained to bind Voldemort to the earth, even after Harry had been killed. True, that would mean an easier job for somebody. He wondered who would do it… Ron and Hermione would know what needed to be done, of course… That would have been why Dumbledore wanted him to confide in two others… so that if he fulfilled his true destiny a little early, they could carry on…