On Yanchuan’s desk, the two folders occupied the same amount of space.
One contained the evidence of a reporting defect: fourteen minutes excluded, an auxiliary cooling load omitted, a restoration check not yet located. The other contained the missing-person inquiry: messages of uncertain authorship, a visitor name, a returned badge, transport charges, and people who remembered parts of an afternoon.
He had begun to treat the folders as if bringing them physically together would reveal how they belonged.
Mei arrived with lunch and found him comparing their timelines.
“What new fact connects these?” she asked.
“The ticket Yansheng requested concerns the acceptance test.”
“That connects his work to the dispute.”
“And he may have visited the annex.”
“That connects his name to a place, subject to verification.”
He looked up. “What would be enough for you?”
“For what?”
“To say they’re related.”
“They are related in the ordinary sense. He worked on the report. He might have sought its underlying ticket. You’re asking whether one event caused the other. We don’t have that.”
He pushed the folders apart. He knew she was right and wanted to tell her so in a way that made her stop being right for the next hour.
The next day Wanjiru held a call with An and Yanchuan. She had prepared an evidence chart that separated existence, authorship, and significance. The visitor register existed. Its named entry had been checked against the original book. Faith remembered a visitor who used Yansheng’s name, but could not make a certain identification. The returned badge proved an item had been processed. The courier’s statement supported a delivery, not a passenger route.
“What about the technical report?” An asked.
“Separate inquiry. We can reference why Yansheng may have sought records. We should not ask the investigators to accept a theory about his disappearance as the price of looking into it.”
Yanchuan wanted to say nobody was asking that. Then he read his latest draft statement, which began with the words After discovering unauthorized alterations.
He changed it to After questioning differences between two acceptance summaries.
The sentence became less dramatic and more accurate.
An examined the table and found two things she could do without visiting Kenya. She could reconcile the original travel invoices with the corrected dispatch records and list which movement claims the employer had withdrawn. She could also obtain a signed record of the company’s current account of its last direct contact with Yansheng.
Luo responded quickly to the first request and slowly to the second. When the statement arrived, it listed the last verified work call on Thursday and described the Friday movements as under investigation.
For the first time the employer had not filled the gap with a private-trip explanation.
An read the page and put it aside.
“That’s useful,” she said. “I don’t feel better.”
Yanchuan knew what she meant. A false assurance could wound, but the absence of that assurance did not bring a person home.
They met in Guangzhou that weekend. Their nephew wanted to show a repair to the bridge’s middle span. He had moved the support rather than adding another, and the bridge now held a toy bus but not the heavier metal truck.
“It’s strong enough for this one,” he said.
“What about the truck?”
“It needs a different bridge.”
They tested both loads and wrote the result on a piece of paper. An taped it beneath the model. Later, after the boy went to bed, she touched the paper and said it was the kind of claim Yansheng would have liked.
Yanchuan thought of the report whose header promised a full run while its footnote narrowed the demand. It was tempting to turn even the child’s bridge into an illustration of the case. Instead he helped clear the dishes.
In Kenya, Amina attended the operator’s scheduled technical review under the new protocol. She did not act as the family’s representative. The record showed that the restoration acknowledgment required by the maintenance schedule had still not been produced. A contractor engineer said the physical configuration had been restored after the demonstration, but the source of his recollection needed to be distinguished from a contemporaneous check.
The reviewers asked for the work-order history and the identity of the person who closed it. They were also seeking an explanation for the final acceptance package’s broader claim.
Yanchuan added the information to the technical folder, not the missing-person folder.
That night he stood on An’s balcony. A train went past beyond the buildings, windows lit in a row. He thought of his brother on ordinary trips, carrying a suitcase through stations while Yanchuan answered with a thumbs-up.
“Do you think he’ll be angry?” he asked when An joined him.
“If we find him?”
“Yes.”
“I hope he’s alive to be angry.”
He looked down at the street.
She stayed beside him without turning the answer into a promise.
On Monday Mei sent him the revised evidence chart. She had added a narrow column titled What would change this conclusion. For the visitor entry: an independently verified identification. For the packet: its documented contents and custody. For the technical report: an approval history or original sign-off. For the missing man: a verified movement, contact, or location.
Yanchuan added a line of his own: A cause cannot be inferred solely because two events happen near each other.
Then he closed both folders.
An called while he was still at the desk. He began to describe the two folders, then heard her son asking for help with a school bag. He said he could call again after dinner.