The District Seven continuation came with a red restriction stamp and a note that made the stamp seem almost courteous.
The sheet was kept in Civic Measures’ restricted plan room. It could be viewed under supervision, not copied, and any survey based on it had to be approved separately. Ysabet got us the viewing appointment the next morning. The survey authorization followed an hour later, limited to two marked points on the public maintenance walk and a single hour before the embankment crew began its shift.
“Someone has gone to the trouble of making this difficult,” I said as we walked to the plan room.
“Someone went to the trouble of making it official,” Ysabet said. “That’s usually worse.”
The clerk set the sheet on a felt-covered table and kept one hand on the corner. It was an old continuation, drawn in the same narrow ink as the District Six plan. Its grid picked up exactly where the earlier sheet had stopped. I checked the reference marks twice before following the line east.
The seven-stone alignment ran beneath the sluice, then angled along the embankment’s foot. Its measured course crossed the old river boundary and ended at a circular outline about thirty feet across. The circle had been drawn with a double boundary, the kind used for a foundation or a buried retaining ring.
A modern survey correction had been written over it in darker ink: NO VISIBLE WORK. AREA INCLUDED IN EMBANKMENT FILL.
“Is that the end?” Ysabet asked.
“It’s the end of the drawn alignment.” I leaned closer, careful not to touch the paper. “The drawing doesn’t say what’s inside the circle.”
The margin held a small notation, nearly obscured by the correction. I angled my head until the light fell across the grooves of the ink. “Retained below grade,” I read. “That’s not the same as removed.”
The clerk lifted his hand from the sheet. “The annotation is not part of the current plan.”
“I’m aware,” I said. “That’s why I’m reading it.”
Ysabet asked for the transfer docket. The clerk brought out a thin folder, then watched while she checked the references. The sheet had been withdrawn after an embankment bearing review. No conclusion was recorded. A later maintenance plan showed the circle under fill, but the drawing used a different coordinate grid and marked no structure there.
The city had not lost the endpoint. It had put a layer of earth over it and called the matter settled.
Our survey window began at nine. The eastern embankment looked unremarkable from the maintenance walk: packed gravel, iron drainage grates, a low parapet, and the river on the far side. The floodwater pushed at the wall below us. Every so often, a buried regulator made the stones tremble underfoot.
Next
The bore is temporarily stopped, but Merrit must learn what the buried receiving foundation was built to receive before the embankment crew is allowed to resume work.
The works foreman handed Ysabet the marked boundary of our permitted area. “No instruments on the parapet. No equipment in the drainage run. If the warning bell sounds, you leave.”
“We understand,” Ysabet said.
He glanced at my passive plates. “Those won’t talk to the sluice?”
“They don’t have anything to talk with.”
“Good. Keep them that way.”
We set the first plate on the public walk. It was a simple weighted disc that registered vibration through a fine mechanical needle. No runes, no power, nothing the Orison could notice or answer. I sighted from the verified point near the sluice and adjusted the plate until its reading matched the old bearing.
The embankment shook. The needle wandered across the scale.
“Water schedule,” the foreman called over the low groan of the gates. “It’ll settle in a minute.”
The first point gave us a noisy confirmation. At the second, farther along the walk, the reading sharpened. The alignment passed under us, angling away from the sluice and toward the circle shown on District Seven.
I checked the coordinates against the old plan. Then I checked them again.
Orren watched the needle settle. “That’s your line.”
“It’s consistent with the line.”
“Must we always make the ground earn the noun?”
“It’s had several decades to practice.”
Ysabet marked the point on our working grid. The foreman glanced at his watch. We had twenty minutes left before the shift change, and the third point lay close to the edge of our authorized strip.
I could have stopped there. We had enough to confirm the bearing beneath the embankment. Not enough to locate the circle precisely. The remaining distance was short, but the ground grew rougher near the drainage grates, where maintenance crews had piled stone over the old fill.
I moved the plate a few inches toward the permitted boundary.
The foreman stepped forward. “That’s the line.”
“I’m inside it.”
“Barely.”
“Barely is a form of inside.”
Ysabet checked the authorization and held it where he could see the marked area. “She’s within the limit. We’ll stop if the reading requires us to go beyond it.”
He didn’t look pleased, but he stepped back.
The third plate settled. Its needle gave a clear vibration along the old bearing, then weakened as I turned it toward the center of the circle. I shifted the plate to test the cross-line. The reading returned from both sides, not as a continuing path, but as a ring.
I crouched and checked the mechanical scale. The embankment’s broad vibration made the fine marks hard to read. Orren held the sighting bar steady while I took the measurement again. Ysabet called the positions. I wrote them down and plotted them on the working sheet.
The alignment did not continue beyond the circle. It ran into its western edge and ended there. Around the center, the ground returned a hollow, even response that matched a buried foundation ring.
“Can you put that in the report?” Ysabet asked.
“I can put that we’ve measured a consistent alignment terminating at a circular subsurface feature. I can’t certify the feature’s construction without opening it.”
“Would you?”
“No.”
The answer came too quickly. I looked at the grates, then at the foreman’s boots planted between us and the fill. An excavation would prove more. It would also breach the authorization, threaten the embankment, and give Civic Measures a reason to take the whole question away from us.
The foreman picked up a clipboard from the maintenance cart. I saw the plan clipped beneath it: a row of anchor positions, each marked with a depth and a bore diameter. One position sat over the middle of our plotted circle.
“What’s that?” I asked.
“Foundation anchors,” he said. “We’re stabilizing this section. First bore starts tomorrow.”
“How deep?”
He checked the sheet. “Past the old fill. Into bedrock if the equipment behaves.”
The circle’s hollow center was directly under that mark. I took the clipboard from his hands before I remembered he had not offered it. Ysabet’s look stopped me from turning it over.
“That bore would pass through the feature we’ve just measured,” I said.
“You’ve measured a vibration.”
“A continuous foundation ring beneath the embankment.”
“You haven’t opened it.”
“No. Neither have you.”
The foreman pulled the clipboard back. “The work is approved.”
Ysabet was already writing on the back of our authorization. “The work is approved under the current plan. We have evidence of an undocumented subsurface structure at the bore location. I’m issuing a temporary hold pending a safety review.”
He read the notice, his mouth tightening. “You can delay a bore. You can’t cancel the project.”
“I haven’t.” She passed him the copy. “You can challenge the hold through your department. Until then, this position stays untouched.”
He looked at me as if I had personally put the circle under his worksite. I understood the expression. It was a reasonable thing to blame the nearest person for. I had done it with machines often enough.
We finished our last permitted reading with three minutes left in the window. The plotted line ended at the circle. No second path emerged on its far side. No source, no chamber entrance, no indication of what the foundation had once supported. Just a buried ring, hidden under embankment fill and set to receive a drill.
Back in the plan room, Ysabet filed the survey result and the temporary hold. The clerk accepted the paperwork without comment. I asked to see the original sheet once more before it went away.
The notation remained where it had been: retained below grade. Beneath it, in lighter ink and smaller letters, was a final word I had missed in the first reading.
Receiving.
I copied the word into my field notes. The city had buried a receiving foundation beneath its eastern embankment, and the seven-stone line ended there. Tomorrow, someone meant to drive an anchor through its center.