Word spread through Hogwarts the way fire spreads through dry grass — fast, shapeless, unstoppable. Four first-years had walked into the dungeons, found Voldemort, and walked back out.
Dumbledore managed the story with the quiet precision of someone who has done this sort of thing before. The headlines stayed on Harry — the Boy Who Lived, who had faced the Dark Lord a second time and survived. Kevin's name moved through the corridors as context rather than subject, which suited him well. The less attention, the more freedom.
They went to the hospital wing together. The other three needed it more for the residual trembling than for any physical injury — the particular aftermath of having genuinely almost died, which turned out to feel quite different from hypothetically almost dying. Kevin sat on the end of a bed and drank the potion Madam Pomfrey pressed on him and stared at the ceiling for a while.
Dumbledore came in the afternoon. He sat with Harry for a long time, talking about Lily Potter and the magic her sacrifice had left in Harry's blood — the specific, ancient protection that had made Quirrell's skin burn at his touch. Kevin listened from across the room without appearing to listen and filed everything away.
When Dumbledore crossed to Kevin's bed, he sat down beside it rather than standing over it, which Kevin noted.
"Mr. Kevin." The old eyes were warm and also completely unreadable. "You have had a remarkable year."
"Thank you, Professor."
A pause. Dumbledore looked at him with the attentive patience of someone who is deciding something. Kevin met his eyes steadily and thought about absolutely nothing in particular, which he suspected was necessary.
After a moment, Dumbledore smiled. "I hope you'll rest properly. You've earned it." He patted Kevin's hand once and stood.
Whatever he'd been looking for, he'd apparently either found it or decided not to push. Kevin exhaled quietly once his back was turned.
Snape's summary of Kevin, relayed to Dumbledore through various channels over the course of the year: arrogant, narcissistic, and financially motivated, with a work ethic that bordered on alarming and a talent he had no business possessing at twelve. Also: completely trustworthy, in the way that a person who wants things too specifically and pragmatically is trustworthy — no room in his ambitions for the diffuse cruelties of the truly dangerous.
Not the warmest endorsement. But Snape's endorsements never were.
Dumbledore had watched Kevin himself and agreed with the assessment. The boy was not going to become Voldemort. His personality alone would have made him a terrible Dark Lord — too cheerful, too social, too interested in winning arguments with Snape about ingredient ratios. The truly dangerous ones never laughed like that.
So he left him to it.
End-of-year life had a looseness to it that Kevin found he enjoyed. Classes wound down. Exams arrived, were conquered, departed. The four of them spent time at Hagrid's hut in a way that had become, without anyone planning it, one of the fixed points of their week.
Draco came more often than any of them.
Norbert was growing with the rapid, slightly alarming dedication of a creature who has decided that its primary occupation is getting larger. Draco had developed, over the months since the barn incident, a relationship with the dragon that Kevin could only describe as devoted — he showed up with meat and questions, learned the wing-fold technique from Hagrid with the careful attention of a student who has decided a subject matters, and occasionally, when he thought no one was looking, spoke to Norbert in the low, private voice people use with animals they've decided are theirs.
Kevin watched this and thought about trajectories.
"Kevin, Hagrid says Norbert's outgrowing the hut," Hermione said one evening, finding him after his training session with Snape. She'd started tracking his schedule with the efficiency of someone who has decided that synchronising timetables is simply the sensible thing to do.
"He's right. The thing's going to be the size of a car by September." Kevin stretched his shoulder. The session had been long. "Have Harry ask Dumbledore about a Shrinking Charm."
Hermione frowned. "Why Harry?"
"Because Dumbledore has a particular soft spot for Harry that makes him willing to hear unusual requests. If I ask, he'll say no on principle and then spend a week wondering why he said no. If Harry asks, he'll think it over."
"That's very cynical."
"It's also accurate."
She considered this. Her hand found his arm, an absent gesture by now, as natural as standing next to him. "And would Dumbledore actually say yes?"
"To keeping a dragon at Hogwarts? Possibly not. But he'll suggest an alternative, and Hagrid will have an option. That's the point." Kevin watched her process it. "Also — Harry should feel useful. He spent last year being the headline and not the protagonist. Let him do things."
Hermione looked at him with the particular expression she wore when he said something that landed differently than she'd expected. She didn't reply immediately.
"You could have just said the Shrinking Charm was your idea and let Harry pitch it," she said finally.
"I know."
She was quiet. Then she tucked herself against his side and said nothing else, which was its own kind of answer.
Kevin had, in the weeks since Voldemort, been working with Snape on something beyond the Potions curriculum.
It had started simply: I need better defences against lethal spells. What do you recommend?
Snape had looked at him for a long moment and said: You want the Killing Curse specifically.
Yes.
There is no counter-curse.
I know. I want the next best thing.
They'd been at it ever since — Snape drilling him in Shield Charms, in evasion patterns, in the rapid-fire reflexes that the Ironclad Charm had demonstrated in the dungeons. Snape was a harsh, exacting teacher and Kevin progressed faster than either of them would have predicted.
His constitution sat at twenty-five now. His magic power at seventeen. The numbers were meaningful in ways that he was still calibrating — past twenty constitution, each point felt like a qualitative shift rather than an incremental one. He'd tested it quietly, carefully. The results were satisfying in a way he decided not to think about too hard.
One Saturday — Hermione's day — she found him in the courtyard with a wooden training sword, drilling footwork in the early morning light.
"Kevin," she said.
He stopped. Turned.
"It's Saturday," she said.
"I'm aware."
"You're training."
"It's footwork. It's relaxing."
She walked over, took the wooden sword from his hand without asking, and set it against the wall.
"Breakfast," she said. "Come on."
He went, because refusing Hermione on Saturdays was not something he had the energy to sustain, and because — if he was being precise about it — he didn't particularly want to.
The Hermione Saturday rule had come from a confrontation with Snape that Kevin had not entirely anticipated.
Snape had, during one of their extended sessions, said something cutting about a girl interfering with Kevin's progress. He had said it in the tone he reserved for subjects he found beneath comment, which was the tone most likely to provoke Hermione.
She had been waiting in the corridor outside. Kevin had not been aware of this.
What followed was, by any measure, a significant event in Hogwarts social history. Hermione Granger, age twelve, backed up against the corridor wall with hands on hips, had delivered to Severus Snape — in complete sentences, with full stops — an assessment of his attitude toward student welfare, his misuse of academic time, and the physiological consequences of chronic overwork in developing adolescents, citing three separate Healer's Guild publications.
Snape had been, briefly, speechless.
Dumbledore, who happened to be passing, had intervened in the mild way of someone who is very slightly enjoying himself but has decided the situation needs resolution. One mandatory rest day per week for Kevin had been established.
Snape, in the privacy of his dungeon, had decided he was not going to spend time thinking about the fact that a twelve-year-old girl had out-argued him in a corridor. He was simply not going to think about it at all.
His intimidating reputation around Gryffindor first-years had, over the course of the year, degraded noticeably. They were still afraid of him. But they had observed Kevin and Hermione shrug off his venom repeatedly, and the observation had done something unfortunate to the calibration of their fear response.
He blamed Potter. It was always easier to blame Potter.
The day Hermione claimed as Kevin's off-day, she also wanted to learn spells.
Harry and Ron appeared. Kevin looked at them.
"We heard," Harry said, with the air of someone who has decided to be straightforward about eavesdropping. "Can we watch?"
Hermione put her hands on her hips. This was her day.
"You'll just observe?" she said.
"From the side," Harry agreed.
She caved, with the martyred grace of someone accepting an inevitability.
"I fight different," Kevin told them. "Don't expect standard Hogwarts form."
"If Hermione can keep up, so can we," Ron said, with the confidence of someone who has not fully thought this through.
"Hermione has no natural talent," Kevin said cheerfully. "She wins by working harder than everyone else in the room. What's your plan?"
Ron opened his mouth. Kevin continued before he could: "Doesn't matter. Come at me. All three of you, together."
The horror on their faces was worth it.
They coordinated reasonably well — Harry's instincts, Hermione's precision, Ron's raw force. Three spells came at different angles, timed to overlap.
Kevin deflected two with his wand and let the third hit a conjured rock that absorbed it.
"My turn," he said.
"You're going to counter-attack?" Harry said. "You didn't say that was part of it —"
"Final Flash."
The light was not illumination. It was compression — an entire sustained Lumos condensed to a single second, the full duration's worth of output detonated at once. The courtyard went white. All three of them stopped seeing.
In the two seconds of their blindness, Kevin had moved between all of them and tapped each one on the head with a wooden stick he'd prepared for the purpose.
The light faded. Three blinked, tearing up.
"That's not fair," Ron said, rubbing his head.
Kevin handed the stick to Hermione and rubbed her head where he'd tapped it. She accepted this with the expression of someone who is not going to admit it helped.
"That's a magic compression technique," he said. "Same principle as Snape's cutting hex — he took the Windcaller Charm and squeezed a sustained gust into a single instant. Razor-thin blade of air, concentrated force." He looked at them. "You can do the same with almost any elemental spell if you understand the underlying control. The hard part isn't the theory. It's the magic control."
Harry stared at where the light had been. "How long did that take you to develop?"
"Months." Kevin leaned against the wall. "Magic control is what separates a competent wizard from a good one. You three have the instincts. You need the precision." He watched them thinking. "Your bodies know what to do in a fight. That's not nothing — that's most people's hard part. What you're missing is the ability to put exactly the right amount of force into exactly the right place at exactly the right moment."
He demonstrated three times, at slower speeds, and let them attempt variations.
They got hit. They improved. They got hit again.
By the end of the afternoon they'd each produced something worth calling a beginning, and Kevin's head hurt from Hermione's retaliatory light-spell attempt, which had been poorly calibrated but enthusiastic.
He counted it as a good day.