Harry's first real improvement came when he stopped intervening on instinct.
It felt unnatural.
That was how he knew it mattered.
Instinct had always been his first language in matters of threat. Not because he lacked thought—Hermione's occasional frustration notwithstanding—but because his life before Hogwarts had trained him to read pressure quickly and respond before explanation had time to arrive. In the right circumstances that made him brave. In the wrong ones it made him late in a different way. By the time words caught up, his reaction had already chosen a frame. Tom had been exploiting that for weeks. Harry knew it now. Knowing did not make stopping easy.
The opportunity to fail differently came in Charms.
Neville stumbled over a minor sequence, not disastrously, but enough that the old pattern would once have activated in Harry almost before he consciously registered it. A slight hesitation, a faint flush, the awkward misalignment of wand and will that Neville had improved in so much and yet still fell into whenever too many eyes seemed to be around him. Harry felt the reflexive urge to step in—not even with a plan, just with movement, with interruption, with that old protecting instinct that had so often gotten him into Tom's chosen frame before he knew it.
Beside him, Hermione noticed the same thing.
She gave the smallest shake of her head.
Wait.
Harry hated waiting.
He hated it because it felt passive. Because every second stretched between recognition and action seemed to risk becoming the second in which something harder took root. Because Neville, specifically, activated too much old protectiveness in him. Neville's progress had become one of the clearest examples of Tom's cost—improvement paid for through constant self-monitoring—and Harry had grown especially sensitive to his threshold states.
But this time he waited.
The room sharpened.
Tom, from the far side of the classroom, had noticed Neville's tension too. Harry saw that noticing. That was another recent development in himself: he no longer merely tracked people. He tracked Tom's relation to people, the quality of Tom's stillness at the point where others started bending. For a moment nothing happened. Then a Gryffindor girl seated nearby leaned over and whispered a correction to Neville—something practical, specific, uncharged. Not Tom. Not Harry. Just a classmate whose intervention arrived early enough and lightly enough to diffuse the pressure without rearranging the wider emotional structure around it.
Neville adjusted. The movement settled. The moment passed.
Tom did nothing.
After class Harry stood in the corridor with the experience still rearranging itself in him. It had been so simple on the surface that part of him almost resented how much it mattered. There had been no victory. No confrontation. No clean thwarting. Just the closure of an opening before Tom could use it.
"So we can block him," Harry said quietly.
Hermione corrected him immediately. "Sometimes."
That annoyed him.
But not because she was wrong. Because she was right in the exact proportion that prevented the hope from becoming stupid. Sometimes was not triumph. It did not erase all the weeks behind them or solve the school itself. But sometimes was better than the helplessness they had been living with, and Harry felt the difference all the way down to the part of him that had begun fearing Tom as a scale rather than merely a person.
They began adapting more actively after that. Not by following Tom around openly, which would have been foolish and short-lived, but by quietly inserting themselves into moments where they sensed a pattern forming. Harry handled the emotional ones better now that he knew to wait just long enough. That just long enough was excruciating to learn. Too early and the intervention felt managerial or exposed the student before they could bear it. Too late and Tom's words might already have entered as recognition. Harry had to build a new kind of patience, one not native to him and therefore hard-won.
Hermione handled the analytical thresholds, especially when embarrassment had begun tilting into receptivity but had not yet hardened into self-diagnosis. She was still better than Harry at identifying the exact cognitive content of a student's instability. He was becoming better than before at reading the emotional weather around it. Ron, though still the least disciplined of the three, proved useful in another way altogether: his mere presence often made moments noisier and less precise, and noise sometimes ruined the conditions Tom preferred.
That, perhaps, was Ron's great accidental gift in this stage of the work. He made things broader when Tom required narrowness. He pulled conversations back toward ordinary schoolboy mess when Tom's method depended on charged significance. A joke, a badly timed complaint, open disdain for a frame that others had been half-seriously entering—these things could ruin a threshold as effectively as any elegant intervention if they arrived in the right place.
Tom noticed the change within days.
Interesting.
The trio were no longer merely studying him.
They were learning his timing.
This was new enough that he gave it substantial attention. Resistance had always existed, but resistance before this point had mostly taken recognizable forms: Harry confronting too directly, Hermione observing too analytically, Ron dismissing too loosely. Now there was adaptation under observation. That meant the field itself had changed. They were no longer only variables within his design. They had become counter-variables capable, occasionally, of altering the conditions before he reached them.
For the first time since arriving at Hogwarts, Tom had to account not only for opposition, but for improving opposition.
He found that invigorating.
Not because he enjoyed being challenged in any childish sport-of-minds sense. The pleasure was colder than that. Competent resistance refined the system. It forced him away from laziness. It proved which elements of the method were truly robust and which had depended too heavily on the ignorance of others. A school with no meaningful resistance would eventually produce vanity in him, and vanity—he knew this more clearly than most children knew anything—was expensive.
At the same time, the trio's improvement taught Harry something crucial about himself.
Waiting did not mean doing nothing.
That distinction had seemed almost inaccessible to him at the beginning of term. Passivity and patience had felt too close together. Tom, through sheer irritation if nothing else, had forced him to learn that they were not the same. To wait with structure, to watch a threshold without lunging at it, to let someone else's emotional state complete itself just enough that help would land as help rather than interference—these were forms of action too, just slower ones.
Harry disliked how much the lesson resembled things Tom would say if stripped of morality.
Hermione noticed that discomfort one evening as they compared notes in the common room. Harry had just described a corridor interaction he had deliberately not entered until another student's embarrassment had settled into something more nameable, and the description carried both pride and disgust.
"What?" Hermione asked.
Harry looked at the fire. "I hate that he was right about part of it."
Hermione didn't ask which part. She knew.
"That timing matters?"
Harry nodded.
For a while neither spoke.
Then Hermione said, very carefully, "Methods don't belong to people just because they use them first."
Harry glanced at her.
She looked tired. More tired than most children should have looked over school notes. But there was clarity in her face too.
"He uses timing to isolate," she said. "That doesn't mean timing itself belongs to him. We can use it to keep people from becoming isolated."
Harry sat with that.
It helped more than he expected.
Because the contamination he had been feeling ever since they began understanding Tom properly had become harder to ignore. Every time they improved their ability to counter him, they necessarily learned more of the same structural principles he used: thresholds, pressure, sequence, the fragility of self-concept under observation. Sometimes it felt as though the only way to resist him effectively was to let part of one's own mind begin organizing around his terms. Hermione's sentence did not resolve that discomfort, but it separated method from moral ownership enough that Harry could breathe inside the distinction.
Later, in the learning space, Andros said something not wholly unrelated.
"You are being watched more closely now," he observed.
Tom did not look away from the sequence he was practicing. "Yes."
"And they are improving."
"Yes."
Andros was quiet for a few moments before speaking again. "Do you know what is dangerous about teaching your enemies?"
Tom turned this over. "That they learn?"
"No," Andros said softly. "That they may learn the parts of your method which are true without learning the parts of you which make it monstrous."
Tom considered that longer.
Because it was an interesting possibility.
Harry learning to wait was not Harry becoming like him. Not really. Hermione learning threshold timing was not surrender. Ron disrupting significance with coarseness was not the same as failing to understand structure. If anything, the trio's adaptation suggested something Tom had not tested enough: whether the same knowledge, differently ordered by value, could produce resistance more durable than ignorance ever would.
That made them more dangerous.
It also made them, in a way Andros would probably have found reassuring and Tom merely found important, more themselves.
Back in the waking world, Harry lay in bed that night thinking less about Tom directly than about the odd unfamiliar discipline forming in him. He still wanted to move too fast. He still felt the bodily urge to step into every moment that looked remotely like the beginning of damage. But now he had evidence that better timing could sometimes do more than speed. That mattered. It was a small success, yes. Limited. Intermittent. But its emotional effect on him was larger than the incident itself.
For the first time, he no longer felt only like Tom's student in the worst possible sense.
He felt, slightly, like an opponent.
Tom, descending later toward the dungeons through corridors that now held winter's deeper cold, thought something not entirely dissimilar from the opposite direction.
The trio were improving.
Good.
That meant the game had finally become worth playing on a longer scale.