Mr. Weasley flinched at the sound of the name but overlooked it.
“Harry, I knew you were, well, made of stronger stuff than Fudge seems to think, and I’m obviously pleased that you’re not scared, but—”
“Arthur!” called Mrs. Weasley, who was now shepherding the rest onto the train. “Arthur, what are you doing? It’s about to go!”
“He’s coming, Molly!” said Mr. Weasley, but he turned back to Harry kept talking in a lower and more hurried voice. “Listen, I want you to give me your word—”
“—that I’ll be a good boy and stay in the castle?” said Harry gloomily.
“Not entirely,” said Mr. Weasley, who looked more serious than Harry had even seen him. “Harry, swear to me you won’t go looking for Black.”
Harry stared.
“What?”
There was a loud whistle. Guards were talking along the train, slamming all the doors shut.
“Promise me, Harry,” said Mr. Weasley, talking more quickly still, “that whatever happens—”
“Why would I go looking for someone I know wants to kill me?” said Harry blankly.
“Swear to me that whatever you might hear—”
“Arthur, quickly!” cried Mrs. Weasley.
Steam was billowing from the train; it had started to move. Harry ran to the compartment door and Ron threw it open and stood back to let him on. They leaned out of the window and waved at Mr. and Mrs. Weasley until the train turned a corner and blocked them from view.
“I need to talk to you in private,” Harry muttered to Ron and Hermione as the train picked up speed.
“Go away, Ginny,” said Ron.
“Oh, that’s nice,” said Ginny huffily, and she stalked off.
Harry, Ron, and Hermione set off down the corridor, looking for an empty compartment, but all were full except for the one at the very end of the train.
This had only one occupant, a man sitting fast asleep next to the window. Harry, Ron, and Hermione checked on the threshold. The Hogwarts Express was usually reserved for students and they had never seen an adult there before, except for the witch who pushed the food cart.
The stranger was wearing an extremely shabby set of wizard’s robes that had been darned in several places. He looked ill and exhausted. Though quite young, his light brown hair was flecked with gray.
“Who d’you reckon he is?” Ron hissed as they sat down and slid the door shut, taking the seats farthest away from the window.
“Professor R. J. Lupin,” whispered Hermione at once.
“How d’you know that?”
“It’s on his case,” she replied, pointing at the luggage rack over the man’s head, where there was a small, battered case held together with a large quantity of neatly knotted string. The name Professor R. J. Lupin was stamped across one corner in peeling letters.
“Wonder what he teaches?” said Ron, frowning at Professor Lupin’s pallid profile.
“That’s obvious,” whispered Hermione. “There’s only one vacancy, isn’t there? Defense Against the Dark Arts.”