The tunnel is low and narrow and smells of standing water and old stone.
Venn goes first with the only candle. Sera is behind him. Then Mira. Then Drev. I take the rear because someone has to and because it gives me a clear view of the whole line if anything goes wrong.
We move in single file. Crouched. Slow.
Above us the sounds of the watch station being entered filter through the stone. Methodical. Practiced. The same professional patience as the cartographer's shop this morning.
Soll does not send amateurs.
I keep my eyes on the line ahead and my ears on the sounds above and think about Father Cairan Soll. The Emperor's personal confessor. Nineteen years in that position. Nineteen years of sitting across from the most powerful man in the empire, hearing his worst thoughts, knowing his deepest fears. Nineteen years of access to every room, every document, every decision.
I think about what a Lector could do with nineteen years in that position. If Soll is one. If that is what he is.
I think about what he has done regardless.
We reach a junction in the tunnel. Two directions. Venn takes the left without hesitating. We follow.
"The sacrament," I say, keeping my voice low. The tunnel carries sound in unpredictable ways and I do not want to find out how far.
Venn does not slow down. "What about it?"
"Sera never received it. Someone kept it from her." I watch the back of his head. "Was that you?"
He is quiet for long enough that the question sits in the water smell and the dark and the sound of five people moving carefully through stone.
"No," he answers finally. "I did not know about the sacrament when she was born. I did not understand what it was until years later."
"Then who?"
"Her mother," he says.
Ahead of me I see Sera's shoulders change. A small shift. Almost nothing. She keeps moving.
"Her mother knew," I say.
"Her mother was a physician," Venn replies. "She had been suspicious of the sacramental compounds for years before anyone else was asking the question. She refused to allow Sera to receive them from birth." He pauses, stepping over something on the tunnel floor. "She died when Sera was two. A fever. Nothing to do with any of this."
"And then Sera went to the convent," I say.
"Yes. The sisters there administered the sacrament to all children in their care." He says it evenly but something tightens in his voice. "I found out three months after Sera arrived there. I intervened before it was administered."
"How?"
"I told the Mother Superior the child had a documented medical sensitivity. I provided forged documentation." He glances back briefly. "I am not proud of the deception. I am proud of the outcome."
Ahead of me Sera makes no sound. She is listening to the story of her own life being told in a drainage tunnel by a man she has worked alongside for eighteen months without knowing any of it. I watch her back. The controlled stillness. The discipline of someone processing something enormous while their body keeps doing what it needs to do.
"The physician twelve years ago," I say. "The one who tried to administer the sacrament privately. That was Soll?"
"Yes," Venn confirms. "He had identified Sera somehow. I still do not know how. I intercepted the physician before he reached her a second time." A beat. "The physician died shortly after. Natural causes, as Drev determined. I believe that part genuinely was natural. Soll simply stopped using him when the attempt failed."
"And then Soll lost track of her," I say.
"Or decided she was not worth the exposure," Venn says. "She was a child in a convent in the outer districts. Not an obvious threat. He moved on to larger concerns."
"Until she joined the Argent Wing," I say.
"Until she joined the Argent Wing," Venn agrees. "And began asking questions that should not have been askable. And then I understood that she was going to find this with or without my help, and that I would rather she survived finding it."
The tunnel bends. The candle flickers. We keep moving.
"You should have told her," I say.
"Yes," Venn says simply. No defense. No justification. Just the word, carrying the full weight of his Regret brand, settling into the dark around us.
From behind me Mira clears her throat quietly. I glance back. She tilts her head forward. Meaning: look ahead.
I look ahead.
Sera has stopped walking.
She is standing in the middle of the tunnel, still facing forward, not moving. Venn has taken three more steps before he notices and stops too.
Nobody speaks.
Then Sera turns around.
In the candlelight her face is doing something I have not seen before. Not the controlled thing. Not the processing thing. Something underneath both of those. Something that has been waiting a long time to surface and has run out of space to stay down.
She looks at Venn.
"My mother refused the sacrament?" she asks quietly.
"Yes," he replies.
"She knew what it was."
"I believe so. Yes."
"And you protected me when she was gone."
"I tried," Venn says. "I did not always succeed. I was not always fast enough. The Cayne patriarch. Soll finding Sera and sending that physician." He holds her gaze. "I failed more than I want to count."
Sera looks at him for a long moment.
Then she nods. Once. Small. The way she nods when she has absorbed something and filed it and decided to keep moving.
She turns back around and starts walking.
We follow.
The tunnel runs another fifty steps before it ends at a rusted iron grate. Venn produces a key from his coat. The grate opens without sound, the hinges recently oiled, which tells me he has been maintaining this exit for years. Just in case.
The canal is grey and cold outside. Early morning, the light thin and flat. A narrow ledge runs alongside the water.
We step out one by one.
Above the city Varenthis carries on with its usual indifference. Market noise two streets over. Gulls on the canal. Someone arguing about the price of something somewhere to the east.
Sera stands on the ledge and looks at the water.
I stand beside her.
We are close enough that I could tell her what I am thinking. I consider it. I decide against it. Some things land better when they are not announced.
Instead I say, "Your mother sounds like someone worth knowing."
Sera is quiet for a moment.
"She was a physician who questioned things she was told not to question," she replies. "And she was right."
A pause.
"You would have liked her," she adds. Not looking at me. Still looking at the water.
I think about that.
"Probably," I agree.
Behind us Venn relocks the grate. Drev is already checking the street. Mira is watching both directions with the professional attention of someone who has survived this long by never assuming anything.
"We need to move," Mira calls out.