The deal with Cass took forty minutes and cost Aran nothing he hadn't already planned to spend.
He laid it out simply, the way he laid everything out — without theater, without the kind of pressure that made people feel cornered and therefore unpredictable. The surface exit. The shell registration. The sister-in-law's name on the paperwork. He named these things in the same tone he'd use to describe the weather, not as threats but as facts, because facts required no maintenance and threats required constant reinforcement.
Cass listened.
He was a careful man. He processed carefully, weighing each piece of information against what it implied about how Aran had acquired it, which implied what else Aran might have acquired, which implied a kind of access that a runner who'd been in the Undercroft for six hours should not have possessed. Aran watched him do this math and did not interrupt it. Interrupting the math would have made Cass feel managed. Letting him finish it made Cass feel like he'd arrived at the conclusion himself.
"The exit isn't just mine," Cass said finally. "It belongs to my sister-in-law. Technically."
"I know. Which is why I'm offering you both passage through it rather than reporting its existence to your organization's comptroller, who would confiscate it and use it and then have a question about why Cass had a private exit he hadn't disclosed."
A pause.
"What do you want in exchange?" Cass said.
"Two things. First: you take Ferro and his sister through the exit and deposit them in the upper city before dawn. You don't ask who they are or why. You don't tell anyone you did it."
"And second?"
"A name. Someone in the upper city who moves information and doesn't ask where it came from. Not a Conclave contact — someone independent. Someone who's been operating long enough that they're either very good or very careful, preferably both."
Cass considered this. It was, in the calculus of what he was being asked to give up versus what he was being allowed to keep, a reasonable exchange. The exit stayed functional. The sister-in-law's name stayed off Conclave records. All it cost him was a favor for a stranger and a contact name.
"Mira Sount," he said. "She runs an aether components business on the upper market's east corridor. The business is real — she's been running it for fifteen years. What she does with information she acquires through the business is her own affair."
"How do I reach her?"
"You walk in and buy something. She'll know why you're there within thirty seconds. If she decides she wants to talk, she'll tell you to come back at closing. If she doesn't, you leave and you don't come back."
"How will she decide?"
Cass looked at him. Something in his expression had shifted over the course of the conversation — not softening exactly, but adjusting, recalibrating around a revised estimate of what he was dealing with.
"I don't know," Cass said. "But I've sent three people to her in five years and she spoke to all of them. I've never sent anyone like you."
"What does that mean?"
"It means I don't know if she'll find you interesting or dangerous." A pause. "Those aren't always different things."
Aran stood. "Ferro and his sister. Before dawn."
"Before dawn," Cass confirmed.
He started to leave.
"Runner," Cass said.
Aran stopped.
"The Conclave is going to ask me what happened tonight. About the junction. About the runner who walked out."
"Tell them the truth," Aran said. "Tell them the runner was a nobody from the mine shafts who got lucky with the timing and you couldn't find him afterward. That's almost entirely accurate."
"And if they don't believe me?"
"Then they don't believe you. But they have no evidence of anything else, because there isn't any." He paused. "You're careful, Cass. You've been careful for eight months without anyone noticing. Keep being careful."
He left.
Sora was waiting in the corridor outside. She had a quality he was beginning to map — she positioned herself where she could hear the most and be seen the least, not aggressively, just habitually, the way people developed habits when those habits had kept them alive long enough to become reflexive.
"Ferro?" he said.
"Packed. His sister too. She's younger than I expected."
"How young?"
"Eleven."
He absorbed this. "Cass will take them before dawn. The exit is a maintenance hatch on the upper market's north face — Cass knows where."
"And after?"
"After they're gone, the Maren Crew has no leverage on the Line through Ferro. Whatever breach he disclosed is sealed — not because he's been punished, but because the information is now stale. You'll need to rotate every route he knew about within the next forty-eight hours."
Sora looked at him.
"You planned that," she said. "The route rotation. You planned it before you talked to Ferro."
"I planned for the possibility that Ferro had disclosed multiple routes. The rotation is standard response to a confirmed breach — you don't need me to tell you that. You've been running this network."
"I've been running this network for two years," she said. "And I have never—" She stopped. Started again. "You've been here for six hours."
"Five and a half."
"You keep saying that."
"Because it's accurate."
She was quiet for a moment. In the distance, the Undercroft's generator hum shifted pitch — a change in the fuel load, someone adjusting the draw somewhere below. The amber light from the nearest lantern flickered once and steadied.
"The name Cass gave you," she said. "The contact in the upper city."
"Mira Sount."
"I know that name."
He looked at her.
"She was connected to the Gut Line six years ago. Before my time. There was a falling out — I don't know the details, I only know it ended badly enough that her name is on a list of people we don't contact."
"Why?"
"I don't know why. I only know the list exists."
Aran thought about this. "The list — is it your list? Did you make it?"
"No. It came with the network. When I took over the Line's Level Three and Four operations, the list was part of the handover."
"So you don't know who made it, when it was made, or why this specific name is on it."
"Correct."
"That's a list someone else wants you to follow," he said. "That's different from a list of people you shouldn't contact."
She opened her mouth. Closed it. The distinction landed visibly.
"I'm going to see Mira Sount tomorrow," he said. "You don't have to come."
"I'll come," she said. Flat, immediate, no deliberation. "If you're going to do something that lands on that list, I want to know what it costs before it costs it."
He nodded. That was reasonable. That was exactly the right reason to come.
"Get some sleep," he said. "The headache is going to be bad tonight and I'd rather not have an audience for it."
"The Void thing."
"Yes."
She looked at his right eye — the cracked one, the warm one, the one that smelled faintly of ozone when the frequency behind his sternum was active. "Is it going to get worse before it gets better?"
"I think 'better' is the wrong framework," he said. "I think it's going to keep happening. I think the question is whether I understand it before it understands me."
"And if it understands you first?"
He didn't answer that.
She went to sleep.
He sat in the corner of the pump room with the candle dark beside him and let the headache run and thought about a man in a grey coat who was still alive somewhere in this city and didn't know yet what was coming for him.