She was seven when she first met him. His eyes sparkled and he offered her a lemon drop. She had been taught not to accept candy from strangers. So Hermione ran away from him. Ever since, she saw him at the park, in the store, at the swimming pool. Lemon drops became Lemon sherbets, chocolate, something he called 'crunchy sticks' and finally lemon drops again.
Slowly she became used to seeing the old man. He became part of her life. So, when he, at August the 30th, four years later, was led into the living room by her mother, she was only mildly surprised.
Later at Hogwarts, she had been delighted to find that no one else had been enlightened by the headmaster himself. It was knowledge that she kept to herself and an explanation she would never share, for a mystery no else recognized. No, she would never tell about the way she had gotten her hands on that ancient copy of Hogwarts, a history.