The lockdown lasted through the afternoon.
The Librarians finished their work by midday — a thorough, unhurried examination of the chamber, the corridor outside it, the quarters where the three children had slept, and the shuttle bay where they'd arrived. They found nothing. No residual presence, no psychic contamination, no trace of sorcery or Warp-taint anywhere in the fortress that could be attributed to the incident in the briefing room.
The figure had come in, spoken, and left without leaving a mark on anything.
Tu'Shan stood in the Librarium with three of the chapter's senior Librarians and read through their findings without expression.
"Nothing," he said.
"Nothing hostile," the senior Librarian said carefully. "Nothing corrupted. No trace of Chaos influence, no Warp residue, no evidence of sorcerous working." He paused. "Whatever entered this fortress did so without disturbing anything it touched."
Tu'Shan set the parchment down.
"It walked into Prometheus," he said. "Past our wards, past our Librarians, past everything we have in place." His voice was even. "And it sat in a room with me and spoke and left and left nothing."
"That is correct, my lord."
"And we have no means of preventing it from doing so again."
The Librarian's pause was answer enough.
Tu'Shan looked at the door of the Librarium. "It said it was here for the child," he said. "Not for us. Not for the chapter." He was quiet for a moment. "I want full wards on her quarters. Rotating Librarian watch on that corridor. Any fluctuation in the local psychic field, I want to know immediately." He looked at the senior Librarian directly. "Whatever this thing is, it has decided to make my fortress its operating ground. That means it is my problem now whether it intends that or not."
"Yes, my lord."
"And I want everything we have on entities that move through Geller fields without triggering alerts. Everything. I don't care how old it is or how obscure." He picked up the parchment again and looked at it. "Something that powerful choosing to only talk is not reassuring. It means it either doesn't need to do anything else yet, or it's waiting for something." He set it down again. "I want to know which."
The Librarians moved to their tasks without further instruction.
Tu'Shan stayed where he was for a moment, looking at the door.
A child had arrived at his fortress two days ago. She had brought with her a Blank of unprecedented strength, a boy who had returned from death, and apparently something ancient enough to speak in a language none of his Librarians could place, that could extinguish lights in a sealed room and pass through every defense Prometheus had as though they weren't there.
He had told her that nothing on Nocturne stood alone.
He was beginning to understand that the statement applied in directions he hadn't anticipated.
He left the Librarium and went to see to his chapter.
Ha'ken had brought food to the quarters.
Not because anyone had asked him to, simply because it was mid-afternoon and none of them had eaten since breakfast and the situation was not going to improve anyone's thinking if they were also hungry. He set it on the small table by the window and said nothing about it and let them take what they wanted.
Lysander took quite a lot.
He ate with the focused efficiency of someone who had remembered that food existed and was making up for lost time, the events of the morning apparently processed and filed in whatever part of him handled things too large to address immediately. Eve sat close to Lilith and ate without looking at the food, her attention on Lilith's face.
Lilith sat at the table and looked at the window.
The ashfields outside were the same as they'd been this morning. The volcanic vent in the middle distance breathed its slow column upward. Nocturne continued doing what Nocturne did, entirely unmoved by the fact that something ancient and cyan-eyed had appeared in a briefing room and extinguished all the lights.
She let out a breath.
"I need to tell you both what I know," she said. "About the figure."
Eve straightened slightly. Ha'ken, standing near the door with his arms crossed, didn't move but the quality of his stillness changed.
Lysander put down what he was holding and looked at her with his full attention, which he gave freely and completely when something mattered.
Lilith told them.
All of it, from the ship — the cold, the hand, the voice, the words it had said. The feeling of it. The age in it. The certainty. She told them what the Librarian had found, the word he'd used. Attention. She told them what Tu'Shan had said afterward and what it meant that the Chapter Master of the Salamanders had said it on her second day on Nocturne.
When she finished she sat back and let out a long slow breath through her nose.
Then she put her elbows on the table and put her face in her hands.
"I'm tired," she said. Into her hands, to the table, to no one in particular. "I'm so tired. We've been here two days. Two days. And already there's a mysterious entity appearing in sealed rooms and extinguishing lights and staring at people." She lifted her face from her hands and looked at the ceiling. "I wanted one week. Just one week of nothing strange happening. One week of training and prayers and learning where things are in the fortress. That was all I asked for."
She looked at the window.
"I didn't even ask out loud," she said. "I just thought it very hard."
The room was quiet for a moment.
Then Eve moved.
She shifted from her chair and sat beside Lilith and rested her head on Lilith's shoulder. She said nothing. She just put her head there and stayed, and the weight of it was steady and deliberate and entirely Eve.
Lilith looked at her sideways and felt some of the tension in her chest ease by a degree.
Lysander looked at Lilith with his forehead creased, the expression he wore when he was working something out. Then he sat up straight with the decisive energy of someone who had arrived at a conclusion.
"I know what will help," he said.
"What," Lilith said.
He reached into his pocket and produced the metal Sentinel. He walked it across the table toward her with the small sound effect under his breath, and stopped it in front of her hand.
"There," he said. "You can hold it if you want. It always makes me feel better when things are scary."
Lilith looked at the metal Sentinel.
Then she looked at Lysander, who was watching her with complete sincerity, entirely serious about this offer, because he was six years old and the metal Sentinel was one of his most important possessions and he was handing it across without hesitation because she'd said she was tired.
Something in her chest did a complicated thing.
She picked up the Sentinel.
"Thank you, Lysander," she said.
He nodded firmly. "You can keep it for as long as you need," he said. "I have the book too if the Sentinel isn't enough."
"The Sentinel is enough," Lilith said.
He looked satisfied and went back to his food.
Eve's head was still on her shoulder.
Ha'ken stood near the door and looked at the three of them and thought.
He had been a Salamander for longer than most people on most worlds had been alive.
In that time he had stood against things that defied ordinary understanding. He had fought daemon engines and Chaos marines and Warp-spawned creatures that had no name in any Imperial text. He had watched brothers fall to things that should not have existed and he had carried the memory of each of them in the way Salamanders carried such things — not as wounds, but as weight, held and honored and not set down.
He thought he knew, broadly, what the universe contained.
He was becoming less certain of this.
He looked at Lilith, small and tired with a metal toy in her hand, and he went through it practically the way he went through most things. Not searching for meaning — that was a path that went somewhere he couldn't verify — just accounting for what was there.
The Navigator's Eye that had opened on a dying ship and torn reality apart. Golden flames in a medicae ward that no Librarian had been able to categorize as Warp-touched. An entity that had cleansed her of corruption during a fever. A voice that had guided her through a Changeling attack and simultaneously guided him to the real Inquisitor. The eye, stolen and returned, working, when it had been blind from birth. The dreams she'd described, the things she'd touched in the Warp, the memories that weren't hers. Lysander, dead, and then not dead. And now this — something that walked through Geller fields and fortress walls and sat in a sealed room and looked at a Chapter Master and said I am here for the child and left without a trace.
He held all of it and looked at it plainly.
This is too much, he thought, to be coincidence.
He didn't use the word destined. He was a practical man and destined was a word that did the work of thinking for you, and he didn't trust words that did that. But he looked at the weight of it, the accumulated, consistent, directional weight of everything that had happened since a fever in a medicae ward on Armageddon, and he acknowledged what it pointed toward.
Something was moving around this child. Multiple somethings. And they were not moving randomly.
Whatever it is, he thought, she is at the center of it. And she is five years old and sitting at a table holding a toy someone gave her because she said she was tired.
He looked at the window. At the ashfields. At the volcanic glow in the middle distance.
Whatever is coming, he thought, I will be between it and her. That's what I can do. That's what I know how to do.
He uncrossed his arms and straightened and looked at the three children at the table.
That was enough thinking.
He pulled up a chair.
"Eat," he said to Lilith, who had barely touched the food. "Whatever is coming, it won't come tonight. And you'll face it better if you've eaten."
Lilith looked at him.
Then she pulled the plate toward her.
Evening came in the way Nocturne evenings came — the amber light outside deepening by degrees, the volcanic glow becoming more visible as the diffuse daylight pulled back, the fortress settling into its nighttime rhythms around them. The lockdown had been reduced to heightened watch, the most acute phase of the response giving way to the sustained alertness that would continue for some time.
The three children slept.
Lysander went first, as he usually did, with the abruptness of someone whose body had a strong opinion about sleep and expressed it without negotiation. The Salamanders book was on his chest before he was properly horizontal and on the floor sometime after, retrieved by Eve without comment.
Eve settled on her own bed and whether she moved in the night Lilith didn't know because Lilith was already asleep.
Ha'ken remained in the chair by the door.
He did not sleep.
He watched the room and the window and the corner and he let the fortress keep its watch around him, and he sat with the weight of what he'd been thinking and held it the way Salamanders held difficult things — steadily, and without setting it down.
The forest was warm.
Lilith walked the path without thinking about it, her feet finding the familiar route. The light came through the canopy in long unhurried shafts. The air had the quality it always had here — comfortable in the way she'd stopped trying to explain.
The path curved.
The temple was there.
She stopped in front of it and looked up at the golden statue above the doors. Same expression as always. The doors were slightly ajar, the same dark inside that had always been there.
She stood for a moment.
Then she heard something.
Not the waterfall. Not the birdsong of the forest. Something coming from inside the temple, through the gap in the doors, threading out into the forest air.
A voice.
Not the woman at the waterfall — she knew that voice now, knew its warmth and its playful patience. This was different. This was older in a different way, steadier, carrying a weight the waterfall woman's voice didn't carry. It had depth to it the way certain silences had depth — not empty, but full of something that hadn't been said yet. It wasn't singing exactly. It was somewhere between singing and speaking, the kind of sound that existed before the distinction between those two things had been made.
It moved through the gap in the doors and into the forest and the forest held it and went very quiet around it.
Lilith stood at the threshold and listened.
Then she raised her hand and put it flat against the door.