Back on the platform, they found Lily and Hugo, Rose’s younger brother, having an animated discussion about which House they would be sorted into when they finally went to Hogwarts.

“If you’re not in Gryffindor, we’ll disinherit you,” said Ron, “but no pressure.”

“Ron!”

Lily and Hugo laughed, but Albus and Rose looked solemn.

“He doesn’t mean it,” said Hermione and Ginny, but Ron was no longer paying attention. Catching Harry’s eye, he nodded covertly to a point some fifty yards away. The steam had thinned for a moment, and three people stood in sharp relief against the shifting mist.

“Look who it is.”

Draco Malfoy was standing there with his wife and son, a dark coat buttoned up to his throat. His hair was receding somewhat, which emphasized the pointed chin. The new boy resembled Draco as much as Albus resembled Harry. Draco caught sight of Harry, Ron, Hermione, and Ginny staring at him, nodded curtly, and turned away again.

“So that’s little Scorpius,” said Ron under his breath. “Make sure you beat him in every test, Rosie. Thank God you inherited your mother’s brains.”

“Ron, for heaven’s sake,” said Hermione, half stern, half amused. “Don’t try to turn them against each other before they’ve even started school!”

“You’re right, sorry,” said Ron, but unable to help himself, he added, “Don’t get too friendly with him, though, Rosie. Granddad Weasley would never forgive you if you married a pureblood.”

“Hey!”

James had reappeared; he had divested himself of his trunk, owl, and trolley, and was evidently bursting with news.

“Teddy’s back there,” he said breathlessly, pointing back over his shoulder into the billowing clouds of steam. “Just seen him! And guess what he’s doing? Snogging Victoire!”

He gazed up at the adults, evidently disappointed by the lack of reaction.

“Our Teddy! Teddy Lupin! Snogging our Victoire! Our cousin! And I asked Teddy what he was doing—”

“You interrupted them?” said Ginny. “You are so like Ron—”

“—and he said he’d come to see her off! And then he told me to go away. He’s snogging her!” James added as though worried he had not made himself clear.

“Oh, it would be lovely if they got married!” whispered Lily ecstatically. “Teddy would really be part of the family then!”

“He already comes round for dinner about four times a week,” said Harry. “Why don’t we just invite him to live with is and have done with it?”

“Yeah!” said James enthusiastically. “I don’t mind sharing with Al—Teddy could have my room!”

“No,” said Harry firmly, “you and Al will share a room only when I want the house demolished.”

He checked the battered old watch that had once been Fabian Prewett’s.

“It’s nearly eleven, you’d better get on board.”

“Don’t forget to give Neville our love!” Ginny told James as she hugged him.

“Mum! I can’t give a professor love!”

“But you know Neville—”

James rolled his eyes.

“Outside, yeah, but at school he’s Professor Longbottom, isn’t he? I can’t walk into Herbology and give him love…”

Shaking his head at his mother’s foolishness, he vented his feelings by aiming a kick at Albus.

“See you later, Al. Watch out for the thestrals.”

“I thought they were invisible? You said they were invisible!”

But James merely laughed, permitted his mother to kiss him, gave his father a fleeting hug, then leapt onto the rapidly filling train. They saw him wave, then sprint away up the corridor to find his friends.

“Thestrals are nothing to worry about,” Harry told Albus. “They’re gentle things, there’s nothing scary about them. Anyway, you won’t be going up to school in the carriages, you’ll be going in the boats.”

Ginny kissed Albus good-bye.

“See you at Christmas.”

“Bye, Al,” said Harry as his son hugged him. “Don’t forget Hagrid’s invited you to tea next Friday. Don’t mess with Peeves. Don’t duel anyone till you’re learned how. And don’t let James wind you up.”

“What if I’m in Slytherin?”

The whisper was for his father alone, and Harry knew that only the moment of departure could have forced Albus to reveal how great and sincere that fear was.

Harry crouched down so that Albus’s face was slightly above his own. Alone of Harry’s three children, Albus had inherited Lily’s eyes.

“Albus Severus,” Harry said quietly, so that nobody but Ginny could hear, and she was tactful enough to pretend to be waving to rose, who was now on the train, “you were named for two headmasters of Hogwarts. One of them was a Slytherin and he was probably the bravest man I ever knew.”

“But just say—”

“—then Slytherin House will have gained an excellent student, won’t it? It doesn’t matter to us, Al. But if it matter to you, you’ll be able to choose Gryffindor over Slytherin. The Sorting Hat takes your choice into account.”

“Really?”

“It did for me,” said Harry.

He had never told any of his children that before, and he saw the wonder in Albus’s face when he said it. But how the doors were slamming all along the scarlet train, and the blurred outlines of parents swarming forward for final kisses, last-minute reminders, Albus jumped into the carriage and Ginny closed the door behind him. Students were hanging from the windows nearest them. A great number of faces, both on the train and off, seemed to be turned toward Harry.

“Why are they all staring?” demanded Albus as he and rose craned around to look at the other students.

“Don’t let it worry you,” said Ron. “It’s me, I’m extremely famous.”

Albus, Rose, Hugo, and Lily laughed. The train began to move, and Harry walked alongside it, watching his son’s thin face, already ablaze with excitement. Harry kept smiling and waving, even though it was like a little bereavement, watching his son glide away from him…

The last trace of steam evaporated in the autumn air. The train rounded a corner. Harry’s hand was still raised in farewell.

“He’ll be all right,” murmured Ginny.

As Harry looked at her, he lowered his hand absent-mindedly and touched the lightning scar on his forehead.

“I know he will.”

The scar had not pained Harry for nineteen years. All was well.