"I'll keep quiet, Harry, don't worry. But, I've got an idea. From what Professor Dumbledore said, at least one of your father's friends is still alive and free. It shouldn't take much searching to find out who his friends were, and track them down. I mean, if anybody could tell you about your parents, it would be one of his best friends, right? So, let's go to the library after supper and start looking."