Voldemort did not answer at once, but merely sipped his wine.
“They do not call me ‘Tom’ anymore,” he said. “These days, I am known as—”
“I know what you are known as,” said Dumbledore, smiling, pleasantly. “But to me, I’m afraid, you will always be Tom Riddle. It is one of the irritating things about old teachers. I am afraid that they never quite forget their charges’ youthful beginnings.”
He raised his glass as though toasting Voldemort, whose face remained expressionless. Nevertheless, Harry felt the atmosphere in the room change subtly: Dumbledore’s refusal to use Voldemort’s chosen name was a refusal to allow Voldemort to dictate the terms of the meeting, and Harry could tell that Voldemort took it as such.
“I am surprised you have remained here so long,” said Voldemort after a short pause. “I always wondered why a wizard such as yourself never wished to leave school.”
“Well,” said Dumbledore, still smiling, “to a wizard such as myself, there can be nothing more important than passing on ancient skills, helping hone young minds. If I remember correctly, you once saw the attraction of teaching too.”
“I see it still,” said Voldemort. “I merely wondered why you—who are so often asked for advice by the Ministry, and who have twice, I think, been offered the post of Minister—”
“Three times at the last count, actually,” said Dumbledore. “But the Ministry never attracted me as a career. Again, something we have in common, I think.”
Voldemort inclined his head, unsmiling, and took another sip of wine. Dumbledore did not break the silence that stretched between them now, but waited, with a look of pleasant expectancy, for Voldemort to talk first.
“I have returned,” he said, after a little while, “later, perhaps, than Professor Dippet expected… but I have returned, nevertheless, to request again what he once told me I was too young to have. I have come to you to ask that you permit me to return to this castle, to teach. I think you must know that I have seen and done much since I left this place. I could show and tell your students things they can gain from no other wizard.”