The basement had a particular smell after a hard session.
Sweat and effort and the specific residue of power used at full capacity — Niall's earth magic left the air with a faint green smell, like soil after rain, and Kristen's blink-light left a brightness behind the eyes even when you weren't looking at it, and Carlyle's water vapor condensed on the walls and dripped down in slow thin lines. Katherine had stopped noticing it weeks ago. Now it just smelled like training. Like the work.
Thomas called the end of the session from the far side of the room.
"That's enough."
No one argued.
Niall sat down against the wall where a crack in the concrete had appeared three days ago from an earth burst he hadn't fully controlled. He looked at the crack the way he always looked at things he'd broken — not guilty exactly, but accounting for it, storing the information of where the line had been and where he'd crossed it. His shoulder had healed. The healer Thomas had brought in had worked on it for two hours and said the tendon had been worse than it looked and Niall had said thank you and not asked a single question about the prognosis because Niall's approach to medical information was to receive what was necessary and not seek what wasn't.
"Your control is better," Thomas said, stopping beside him.
"Than what," Niall said.
"Than last week."
Niall looked at the crack in the wall.
"The wall would disagree," he said.
Thomas looked at the crack too. "Last week you took out the entire left section. This week it's one crack." He moved on before Niall could respond, which was his way — the observation delivered and the space left for the person to do what they wanted with it.
Courtney was sitting on one of the training mats with her knees drawn up and her hands loose in her lap, which was how she sat after sessions that had required a lot of Blood Magic. The power left her tired in a specific way, a bone-deep kind of tired that wasn't injury and wasn't sickness but was the feeling of something that had worked very hard and needed to rest.
Katherine sat beside her.
"You pushed it today," Katherine said.
"Thomas asked me to." Courtney looked at her hands. "He wants me to hold the thread longer. Past the point where it gets uncomfortable." A pause. "It gets uncomfortable."
"I know."
"How do you know?"
"Because the dark element gets uncomfortable too," Katherine said. "Past a certain point. There's a moment where it stops feeling like power and starts feeling like something else." She looked at the ceiling. "Thomas says that's the point. That the useful part lives on the other side of that feeling."
Courtney was quiet for a moment.
"Does he ever actually do the thing he's asking us to do?" she said.
Katherine considered this.
"He's been doing it for a very long time," she said. "I think for him it stopped being uncomfortable."
"That's either very encouraging or very discouraging," Courtney said. "I haven't decided which."
Katherine almost smiled.
Across the basement, Kristen and Jasper were doing what they always did after training — talking through what had worked and what hadn't, the specific debrief that Kristen had started conducting with whoever was nearby and that had become, gradually and without anyone deciding it formally, something the group did. What landed. What didn't. What to try differently next time.
It had started as Kristen's habit and become everyone's habit, the way good habits spread through a group when the group is paying attention.
Thomas stood in the center of the room and looked at all of them with the expression he had at the end of hard sessions — not pleased, exactly, because Thomas did not express pleasure in a way that was easy to read, but something in his posture said that what he had watched today had been what he needed to see.
"Tomorrow," he said, "we run the formation drill at double speed. The witch hunters moved faster in Miralba than we anticipated. We adjust for what was real, not what we planned for."
He went upstairs.
Niall looked at Katherine from across the room.
"Double speed," he said.
"You heard him," Katherine said.
"I heard him," Niall agreed. He looked at the crack in the wall one more time. "My wall is very grateful for the rest."
From the mat, Courtney made a sound that was close to a laugh.
It was the closest anyone had come to laughing in the house in three weeks.
Katherine noticed it.
She filed it.