As they headed for the greenhouse, Natty was more interested in the young matron's words than his sundry green surroundings.

"Illness...?" he asked with slight surprise when she spoke quite casually of illnesses spreading round the school. Strangely enough, it had never occurred to Natty that schools were a hotbed for disease. He'd been an only child, only spent one year at Hogwarts as a boy, and had only been a father himself for a matter of minutes...

Children were really not his area.