The request slip was real.
That was the first sentence Wanjiru allowed the family to put in its next summary. The original had been located among the compound’s administrative records. Its number matched the maintenance ticket Daniel Otieno had described. It was dated October 30 and bore the name Lin Yansheng, entered by a clerk.
There was no signature by the person asking for the document.
A name in the register and the same name on the slip could establish a transaction at a counter without becoming two independent identifications. Yanchuan understood this so thoroughly that he disliked hearing it again.
An read the summary between supplier calls. When they spoke, she asked the question he had missed.
“What happened to the request?”
He looked at the final column. On the following working day it had been marked closed. The reason said forwarded to document control.
“Closed doesn’t mean released,” he said.
“That’s why I’m asking.”
They sent the question through Wanjiru. Four days later the answer arrived. The maintenance office had transmitted a copy of the ticket to a contractor’s document controller, not to the visitor. There was a transmission receipt and a named recipient. There was no recorded collection by Yansheng.
The chain looked neat on paper: Daniel’s note, the maintenance ticket, the visitor’s request, the transfer to document control. Yanchuan could almost see his brother walking along it. He reminded himself that documents were very good at traveling without people.
Amina called after her shift.
“Why was the ticket under that office’s control?” she asked.
“It concerned the cooling arrangement.”
“That tells you what it concerned. Not who could release it.”
The temporary arrangement had served equipment maintained by more than one company. The operator held one set of records; the contractor that ran the acceptance demonstration held another. An annex company had performed part of the maintenance under a service agreement.
“Which contract?” Yanchuan asked.
“That’s the question.”
The authorized technical reviewer requested the agreement clauses that governed document custody. Amina was careful not to ask her colleagues for the entire contract or for commercial terms unrelated to the equipment. What came back was a short schedule and two pages of responsibilities, with names and prices outside the question removed.
At the top was the site operator’s service contract. Beneath it, referenced in a footnote, was a subcontract for the annex’s auxiliary systems.
Yanchuan read the schedules aloud to Han Rui that evening. Under the main contract, a temporary change to the cooling arrangement required a maintenance ticket and confirmation when the original state had been restored. Under the subcontract, the annex team could perform and record the work, but closure of the parent ticket remained with the designated contractor.
“So who had to sign the restoration?” Yanchuan asked.
“Read the handover clause,” Han said.
There was a handover requirement. Its language assumed the receiving contractor would acknowledge a completed action before the ticket was closed. The fragment supplied to them showed the rule, not whether it had been followed.
Yanchuan searched the received extract for the acknowledgment. It was not there.
“That proves they never restored it,” he said.
“No,” Han replied. “It proves the acknowledgment isn’t in the pages you have. Ask where it should be stored.”
Yanchuan rubbed his eyes. The border between an absence in the record and an absence in the world had become the most exhausting place he knew.
He wrote the question down.
An noticed something different in the account numbers. The service office whose address had appeared on the transport invoice was also listed as a document-transfer point under the subcontract. The code matched the delivery note for replacement cooling parts.
“That explains why the office appears in procurement and maintenance,” she said.
“And perhaps why the envelope went there.”
“Perhaps. We still don’t know what the envelope contained.”
They compared the two records anyway. One described a sealed document envelope delivered without a passenger. The other described a designated point for sending maintenance papers. They referred to the same service account but did not identify the contents of that particular journey.
For a while Yanchuan considered writing a single sentence connecting them. He could make it sound reasonable. He had become skilled at making reasonable sentences outrun their evidence.
He left the connection as a question.
The reviewer sent a narrower request: identify the custodian of the parent ticket, provide any closure acknowledgment and revision record, and explain whether the October 29 acceptance summary had relied on a temporary cooling configuration still recorded as open.
It was a commercial question with consequences for workers who maintained the installation. It was also a reason Yansheng might have wanted a document on October 30. Neither fact established what happened to him afterward.
Qiao called from Guangzhou while Yanchuan was saving the summary. She had exchanged shifts so she could take Jianming to a medical appointment in Wuhan the following week. Their father had been putting it off because he did not want anyone spending money to accompany him.
“I can come,” Yanchuan said.
“That’s why I’m telling you I’ve arranged it.”
He sat at the edge of his bed. His first impulse was to look up train times. He recognized it before opening the app.
“Thank you.”
“He’s still our father when we aren’t looking for Yansheng.”
“I know.”
“I know you know.”
They spoke about the appointment, the building lift, and whether the repaired lamp still flickered. Qiao made him laugh by describing their father testing the switch as though it had challenged him personally. After the call, Yanchuan sent money for the fare. She returned half and told him not to begin an argument over arithmetic.
On Friday the investigator’s update said the contractor had been asked to identify the recipient of the transferred ticket and explain how a request marked pending had become a request marked closed. Witness accounts about the visitor’s movements after the counter were still being checked.
No departure from the compound had been confirmed.
Yanchuan read that last sentence to An.
“I hate it.”
“So do I.”
“It’s the right sentence.”
“Yes.”
Their son had a school activity the following morning. An asked if Yanchuan could come. He had intended to spend Saturday reorganizing the case folder, although nothing in it required another reorganization.
“What time?”
“Ten. He wants to show you the bridge before they take it apart.”
He bought a train ticket.
At the school, the wooden span held for seven seconds under a row of small metal weights. Then one joint opened and the middle dropped onto the table. The children shouted. An’s son looked stricken, but Yanchuan crouched beside him and asked where the first movement had begun.
The boy pointed to a loose connection near the edge, not the broken section everyone was staring at.
“Can we try again?”
“Ask your teacher. And write down what happened this time.”
The boy ran to do it. An stood beside Yanchuan holding the coat he had forgotten on a chair.
“You didn’t tell him it would be fine,” she said.
“I don’t know if it will.”
“He knows that.”
On a table covered in pencil marks and splinters, the children gathered the pieces for another test.
In his bag, Yanchuan’s phone held two contracts describing where a record ought to travel. Somewhere beyond them were people who could say where it actually went. And somewhere beyond that was the question the contracts could not answer.
The next span fell sooner than the first. His nephew frowned at the weights; Yanchuan fetched a pencil and let the boy decide which joint to test next.