The assessment wing door was open.
Isaac stopped in the frame.
The wall to the left had cracked — hairline fractures branching in patterns he recognized without immediately placing why. The rune etching along the base had died completely. The warm light the assessment wing ran on was a degree colder than designed.
That last part explained why nothing had stopped him on the way down. The wall breach had knocked out local monitoring. No cameras. No alerts. Just open corridors and the facility breathing around him like it always did at this hour.
Someone had come through a wall.
And the Bureau didn't know yet.
Echo stood in the centre of the room.
Beside her — close enough that their arms were almost touching — was something that took Isaac's mind a full second longer than it should have to process.
A child.
Mostly. The shape was right. The height was right. But the edges were wrong — shoulders bleeding into air, fingertips uncertain, the line between where they ended and the room began unclear in a way that made his eyes want to slide away.
The entity went cautious inside him. Not still — cautious. The specific quality of something that had encountered the unexpected and was deciding what it was before deciding what to do about it.
Echo looked at Isaac.
She didn't seem surprised.
"You said tomorrow," she said.
"Plans change," Isaac said.
His eyes moved to the child.
The child was already looking at him. Had been since he appeared in the doorway — taking him in with the focus of something that had heard his voice through walls for years and was now matching sound to source for the first time.
Isaac looked at Maren.
She was standing beside the table. Notebook closed. Pen uncapped but nothing written. She was looking at the child with an expression he had never seen on her face before — not warm, not calculating, not the smile that meant she was ahead of everything.
Just looking.
Like she was trying to work out whether what she was seeing was a result or a variable.
"You didn't know," Isaac said.
Maren looked at him. "No."
"How long has it been in the walls."
"Since before my appointment," she said. "Possibly since the program ended."
The room was quiet.
Seven years.
The child had been in the walls of this facility for seven years. While the Bureau ran its cycles and filed its reports. While technicians sat behind glass on sublevel nine and measured numbers they didn't understand. While Isaac walked these same corridors and told himself the arrangement was sustainable.
Seven years.
Echo put her hand carefully on the child's arm. The child's edges steadied slightly at the contact — uncertain geometry settling the way it had when Echo touched the wall in Chapter 15. Like proximity to her Fragment energy was doing something distance hadn't managed.
"They tried to tell me their name through the resonance," Echo said quietly. "It came in pieces. I think it's Wren."
Isaac looked at Wren.
Wren looked back.
Up close the wrongness was quieter — less about the edges, more about the eyes. The look of someone who had been alone long enough that company felt like a language they were conjugating carefully, making sure each word was right before committing to it.
Isaac crossed the room. Passed Maren without acknowledging her. Stopped in front of Wren and crouched down — not to meet their eyes, the blindfold made that meaningless — but because it was what you did. A human gesture performed by instinct despite everything that had made him less than human over the years.
Wren looked at him crouching there.
Their mouth moved. The edges of words forming — broken Bureau phrases and something underneath them that was trying to become its own thing again. Slow. Careful.
Isaac waited.
The entity waited with him. Still cautious. Still deciding.
Then Wren reached out and put one uncertain-edged hand against Isaac's blindfold.
Not pulling. Not grabbing. Just there — the way Echo had put her head against his arm in the transport without asking and without needing to.
The entity shifted.
Recognition moved through it — not the immediate resonance it had found with Echo, something slower than that. More careful. Like it was tracing the shape of something familiar through years of distortion and restructuring and finding the original underneath.
Same origin. Same program. Same damage at the root of it.
Different everything else.
Isaac did not move.
Wren's edges steadied — more than they had with Echo's contact, more than they had with anything in this room. Like whatever the entity was doing on its side of the blindfold was doing something back.
Behind them Maren picked up her pen.
Looked at the blank page of her notebook.
Put the pen down again.
Not because she had nothing to write. Because for once she didn't know where to start.