"Minerva, I can't do this. I am terrible with power. If I have too much, I begin to do bad things. Today, I almost made a bridge collapse. Actually it did collapse, but I fixed it just in time. But I won't always be able to save the day."
"Surely, you can't be thinking of quitting your job as minister of magic. We need you."
"Ah, but I am no more help then a normal wizard. Not many people are ready to believe that Voldemort is back. I will not be helping anyone by forcing them to believe something they don't want to."
"But, Albus . . ."
"Yes, I have decided. I will stay here. I will be the minister of magic just long enough to help sort everything out. You don't know the things that I can do with power, Minerva."
"Oh, I am sure that you can do extraordinary things. And that is why we need you. You, Albus, are the only one who Voldemort feared. There is something special about you, that none of us have."
"How very flattering, Minerva. But I have reached my decision." Dumbledore's voice was now cold and a bit harsh. Professor McGonagall recognized this as a sign to leave, but she couldn't just yet.
"Albus, you do not understand. Voldemort is out to kill Harry Potter, and anybody who gets in his way, will only die. Voldemort is more then willing to kill anyone who stands up to him. Nobody has a chance against him, except for you, Albus. That is why we need you."
"That is not true. I cannot kill him. Only Harry Potter can." Professor McGonagall let out a gasp.
"But he's only a boy!"
"True, Minerva, but not for long. Only Harry Potter has a power that Voldemort has not and can use it properly. And we know how powerful and strong that person must be.
"What is this power? How can only young Harry defeat the darkest wizard of all time, when you, the most gifted wizard the world has ever seen, can not?"
"You would not understand, Minerva," Dumbledore said sadly.
"Wouldn't understand?" Professor McGonagall said her nostrils flaring. "How could I not?"
"I am terribly sorry, but this is between Harry and myself and that is it."
"Oh, very well. I suppose you will tell me eventually, though?"
"Yes, but in several months, if not years. It depends on how ready Harry is."
"Ready for what, Albus?"
"The truth."
If Professor McGonagall was still confused, she did her best not to show it. After all, Dumbledore seemed tired enough, and she thought it best not to bother him at this hour.
"Very well. I shall tell Scrimgeour that you wish to meet with him, and that you are resigning from your post as minister of magic."
"Thank you, Minerva. Please send it immediately, so that he gets it in the morning." Dumbledore sank down into a big comfy armchair and closed his eyes peacefully. "Please shut the door, Minerva."
"Yes, of course," she answered as she quietly stepped out of his office. She herself was tired, but must mail this letter. As she walked, she sealed the parchment and set off towards the owlery.