“I see,” said Professor McGonagall, fixing Harry with her beady eyes. “Then you should know, Potter, that Sibyll Trelawney has predicted the death of one student a year since she arrived at this school. None of them has died yet. Seeing death omens is her favorite way of greeting a new class. If it were not for the fact that I never speak ill of my colleagues—” Professor McGonagall broke off, and they saw that her nostrils had gone white. She went on, more calmly, “Divination is one of the most imprecise branches of magic. I shall not conceal from you that I have very little patience with it. True Seers are very rare, and Professor Trelawney—”
She stopped again, and then said, in a very matter of fact tone, “You look in excellent health to me, Potter, so you will excuse me if I don’t let you off homework today. I assure you that if you die, you need not hand it in.”
Hermione laughed. Harry felt a bit better. It was harder to feel scared of a lump of tea leaves away from the dim red light and befuddling perfume of Professor Trelawney’s classroom. Not everyone was convinced, however. Ron still looked worried, and Lavender whispered, “But what about Neville’s cup?”
When the Transfiguration class had finished, they joined the crowd thundering toward the Great Hall for lunch.
“Ron, cheer up,” said Hermione, pushing a dish of stew toward him. “You heard what Professor McGonagall said.”
Ron spooned stew onto his plate and picked up his fork but didn’t start.
“Harry,” he said, in a low, serious voice, “You haven’t seen a great black dog anywhere, have you?”
“Yeah, I have,” said Harry. “I saw one the night I left the Dursleys’.”
Ron let his fork fall with a clatter.
“Probably a stray,” said Hermione calmly.
Ron looked at Hermione as though she had gone mad.
“Hermione, if Harry’s seen a Grim, that’s—that’s bad,” he said. “My—my uncle Bilius saw one and—and he died twenty four hours later!”
“Coincidence,” said Hermione airily, pouring herself some pumpkin juice.
“You don’t know what you’re talking about!” said Ron, starting to get angry. “Grims scare the living daylights out of most wizards!”
“There you are, then,” said Hermione in a superior tone. “They see the Grim and die of fright. The Grim’s not an omen, it’s the cause of death! And Harry’s still with us because he’s not stupid enough to see one and think, right, well, I’d better kick the bucket then!”