The departure time arrived in the same kind of table as the one that had first taken fourteen minutes away.
Friday, October 30. Visitor: LIN YANSHENG. In: 15:06. Out: 16:18.
Yanchuan read the numbers standing beside an office printer. The page had been sent through Wanjiru after the investigator obtained a fuller export of the service compound’s electronic visitor records.
For three months the family had lacked a confirmed movement after Thursday. Now an ordinary administrative system seemed to supply two on Friday: an arrival and a departure.
“Does this mean the clerk’s account is confirmed?” he asked An.
“It means the system has an exit time. We need to know where it came from.”
He nearly told her she was being too careful. The thought embarrassed him as soon as it formed.
They asked for the paper behind the electronic field. An officer compared the visitor record with the desk register and the pass-control sheet. The same entry had been copied into the daily summary, but the out time came from a different field.
It was called badge return processed.
At 16:18, a numbered pass had been placed back into the cabinet and marked available for reuse. No person had signed the departure line. The pass clerk had not written that she saw its holder leave. A daily script had later translated the return time into the electronic visitor’s out time.
Wanjiru read the explanation aloud during their call.
“A pass came back,” Yanchuan said. “Not necessarily a man.”
“Yes.”
“Who brought it back?”
“That is now being asked.”
The answer was neither a triumph nor a collapse. The visitor might still have left at sixteen eighteen. He might have handed the badge to a colleague earlier or asked someone to return it for him. Someone else could have used his name at entry. They had a record of a pass and no confirmed observation at a gate.
Yanchuan changed the chronology again. He crossed out departed at 16:18 from the working note he had entered that morning and replaced it with badge return processed at 16:18; holder’s movements unconfirmed.
He called Luo because the company’s earlier statement had referred to the employee leaving the assignment on Friday.
“Where did your time come from?” he asked.
Luo took long enough to answer that Yanchuan opened the original statement while waiting.
“The local partner gave us a movement summary.”
“Did it come from the electronic visitor file?”
“I believe so.”
“Then please check before you describe it as a sighting.”
Luo sighed. He said the firm was trying to answer the family while respecting what the local investigation could establish.
“So are we,” Yanchuan said. “We’ve already corrected the checkout. The airport journey was changed. Now the badge came back without a witness. Every time we ask who saw him depart, we get proof that someone completed a transaction.”
He regretted the last sentence for its sharpness, not for its substance. Luo said he would ask the partner to withdraw the departure claim pending clarification.
When they ended, Yanchuan looked at the three documents laid out on his desk. Hotel checkout: payment by a contractor. Airport transfer: a booking that had been changed and a vehicle later carrying another passenger. Service compound exit: a pass returned to a cabinet.
Each had been offered, at one time, as a man leaving somewhere.
The records were genuine. The traveller had not been established by any of them.
At dinner with Mei he arranged them in a table. She watched him draw arrows between the three and slid the paper back.
“Those aren’t successive locations,” she said. “They’re three administrative events.”
“I know.”
“Then make separate boxes. Don’t give a reader a route your sources can’t support.”
He redrew them. It looked less like a map and more like paperwork. He hated the difference.
Amina called the next morning with a warning. The compound’s security supervisor had asked staff not to discuss visitor records outside the case inquiry. She could not tell whether this was ordinary preservation of evidence or a response to rumours about the witness. Faith had not spoken to her about it.
“Don’t contact her,” Amina said before he could ask.
“I wasn’t going to.”
“You sound as though you want to thank her.”
“I do.”
“Then leave that for a time when your gratitude doesn’t make her job harder.”
They changed the subject to Daniel. Rose had received a corrected account of his treatment payment. It still left one expense unexplained, but the responsible employer was now named. Amina sounded relieved about that in a way she had not sounded relieved about the visitor record.
Yanchuan realized his case had trained him to listen to another family’s progress as a delay in his own. He asked after Daniel’s leg and listened to the answer.
Later, Wanjiru received the next official clarification. The pass clerk remembered a small bundle of badges being returned near the end of the afternoon. She had not recorded who carried the bundle. The security team was checking which badges were issued that day and whether any entry had been closed automatically during the shift reconciliation.
There was no reason to call the clerk dishonest. The visitor software had asked its operators to record equipment returning to a cupboard, then presented the result in a column labeled departure. Yanchuan had built enough reporting systems to know how easily a field name could become a claim.
He told Chen, without mentioning the case, about the design error.
“We have a maintenance dashboard that says resolved when a technician closes the screen,” Chen replied. “The faults don’t disappear just because the interface is pleased.”
“Have you fixed it?”
“We renamed the button. Now we’re trying to change the process.”
They went together to a meeting with the service team. A technician described leaving a defect open overnight because the person responsible for the next shift was absent. Management had marked the work order overdue. Yanchuan watched Chen ask the technician to show the exact step where responsibility passed.
It took fifteen minutes. Nobody accused the technician of hiding work.
That evening An’s son wanted to know why a school attendance app said he had gone home before she collected him.
“The teacher tapped everyone out after the activity,” An explained. “The bus group left then. You were still in the classroom.”
“Then it said something wrong.”
“It said something about a list. We thought it said something about you.”
Yanchuan, listening on speakerphone, almost laughed. The boy sounded offended that adults would need so long to understand such a distinction.
He looked at the visitor file after the call. Its clock time was precise to the minute. The precision had briefly made it feel more solid than the hotel receipt and the van booking.
It was not.
He sent Wanjiru a summary with the three departure claims kept separate, their actual sources identified, and a request to determine whether any independent witness or original movement record placed Yansheng beyond the receiving counter.
She acknowledged it and said the investigator would continue checking.
For the first time, Yanchuan did not ask when the answer would arrive.
He still set his phone where he could hear it.
At midnight, before turning out the light, he noticed a detail he had not copied into his table. The visitor register’s purpose field said maintenance record. The returned pass had been associated with the receiving counter, but the internal destination was a separate office, farther into the compound.
It did not tell him the visitor had reached it.
He circled the destination field, then stopped before drawing a line from the receiving counter to a doorway nobody had witnessed his brother entering.
He sent the field reference through the agreed channel and put the phone down.