The seventh confirmed Zhang Yi Bi piece arrived as a photograph in an email from a researcher in Hong Kong named Chen Jian Ming on a Monday morning in late November.

He opened the photograph, enlarged it to maximum resolution, and sat looking at the base image for seven minutes without speaking.

Ninety-five percent.

The light in the photograph was good — better than most documentation photographs he had examined. The angle of the shot caught the lower right corner of the base in a way that made the mark clearly visible: the curve, the specific angle, the terminal drag to the left.

Not the eighty-five percent of the preview photograph, not the sixty percent of the auction catalogue image. Ninety-five percent from a photograph. Which meant that with the piece in hand, the number would go higher.

Lin Jing Huo, from across the room: 'What is it?'

'The seventh piece. The Hong Kong researcher I mentioned.' He enlarged the photograph further. 'The mark is clearer than in any image I have seen except the Wang piece.'

She came to look at the screen over his shoulder.

'That is visible even to me,' she said.

'Yes. When the light is right and the angle is right, it resolves clearly. Most documentation photographs are not taken with this in mind.' He leaned back. 'Contact Chen Jian Ming today. I want to know where the piece is physically and whether I can examine it.'

'He suggested in his email that he could come to Beijing, or you could come to Hong Kong. He indicated a preference for meeting in person before deciding how to proceed.'

'Which preference?'

'He did not specify. The message was somewhat formal — he said he had colleagues who had mentioned the Zhang Yi Bi preliminary documentation, and that he believed he had a relevant object, and that he was interested in discussing the matter with someone directly involved in the research.'

He considered the phrasing she described: colleagues who had mentioned the documentation. Not the forum, not the auction house. Colleagues. Which meant the documentation had traveled through channels he had not directly activated.

This was the network operating beyond his ability to track it.

'Invite him to Beijing,' he said. 'Schedule for whenever is convenient for him within the next two weeks. The formal publication is moving toward completion — I want his piece in the evidentiary base before submission if possible.'

'I will write to him this morning.'

She went back to her desk. He remained looking at the photograph.

Seven pieces. A craftsman who had lived and worked in the Xuande period — the working name was Zhang Yi Bi, the name meaning one-brush Zhang, a name that had probably attached itself during a period of characteristic work and remained with the person long after the characteristic had become simply who they were. No family name recorded. No birth date. No death date. No information about their life outside the workshop except that they had been transferred from imperial decorative ware to high-status general production in year four of Xuande, which suggested a career of some significance — you did not transfer craftsmen of little value to high-status production lines.

Seven pieces across how many years of production? He did not know. The celadon bowl, which might predate the Xuande workshop record, placed at one end of a possible career timeline. The large vase from the auction, with its sophisticated compositional confidence, placed the craftsman at a mature stage. The smaller vase Li Guo Hong had held for twenty years showed an intermediate quality.

A life in production, measurable now only through what had survived.

He thought about his own life in production — the pieces he had made in Chang'an, the ones that had gone to court, to diplomatic gifting, to temple installations. How many of them still existed somewhere? The large blue-white vase that had fallen with him into the well — had it broken when it hit the water? Or had it landed intact on a stone ledge somewhere deep in the shaft, preserved in the cold dark for over a thousand years?

He would never know.

The thought was not distressing. It was simply true.

'Dao Ke Ming,' Cao Bao Nian said quietly.

'I am here.'

'You were very still just now.'

'Thinking about pieces that no longer exist.'

'Your pieces.'

'And Zhang Yi Bi's. The ones that did not survive.'

Cao Bao Nian was quiet for a moment.

'The ones that survived are enough,' the voice said. 'They are enough to name the person. To understand the work.'

'Yes.' He looked at the photograph on the screen. 'But the ones that did not survive are also part of the account. The gaps in what we can find are not empty — they tell us something about transmission, about chance, about the specific conditions that allowed some things to persist and not others.'

'That is a more complex form of reading than most people do.'

'Most people read what is there. I am also reading what is not there.' He closed the photograph and opened the draft of the formal publication. 'It is the same skill. Applied to absence rather than presence.'

Chen Jian Ming arrived the following Thursday.

He was forty-five, dressed neatly in a way that did not announce itself, and he carried his object in a cloth bag that he held with the care of someone who had transported fragile things many times and had developed specific habits for doing it without incident.

The object was a small vase — the smallest of the seven, perhaps fifteen centimeters — with a delicate shoulder and a slightly longer neck than was typical of Xuande work, which gave it a quality of reaching upward that the other pieces did not have. The blue-white glaze: deep, correct. The decorative motif: simplified, a single branch of flowering plum, the blossoms indicated with a few precise strokes.

He picked it up.

Weight: slightly lighter than expected for the size, which suggested a wall thickness at the lower end of the typical range. Not a flaw — a deliberate choice for a piece this size, giving it a quality of apparent fragility that was part of its intended effect.

He turned it slowly. The plum branch: the brushwork had the same economy as the other pieces, the same willingness to indicate rather than describe. But in this piece there was something additional — a quality in the blossoms that he had not seen in the larger, more formally composed works. The blossoms on this vase were slightly irregular in their placement — not sloppy, but alive in a way that the more precise compositions were not. The craftsman's attention was different here.

He turned the vase over.

Base. Lower right corner.

The curve. The drag to the left.

But here, near the mark, something additional: a very faint trace of what might be a character, or might be an incomplete shape that the craftsman had started and then abandoned — a stroke that went nowhere, smaller than the mark itself, easily missed.

'Chen tiên sinh,' he said. 'This trace near the mark — have you examined it under magnification?'

Chen Jian Ming leaned forward to look where he was pointing.

'I noticed it,' the man said. 'I thought it might be a glaze imperfection.'

'It may be. Or it may be an incomplete character — something started and abandoned.' He set the vase down carefully. 'If it is an incomplete character, it is the closest thing we have found to a conventional signature. Most of the other pieces have only the mark — this one may have had an intention toward something more explicit that was not carried through.'

'Why would the craftsman start a character and not finish it?'

'Decision. Interruption. The firing process revealing that the character would be visible in a way the craftsman had not anticipated.' He looked at the incomplete trace. 'Or deliberate incompletion — marking the intention without fully executing it.'

Chen Jian Ming looked at the vase for a long moment.

'I acquired this piece at a small auction in Macao eight years ago,' he said. 'The price was low — the seller had it grouped with pieces from a later period and the attribution was uncertain. I bought it because the brushwork on the plum branch seemed unusual to me. Not technically unusual — emotionally unusual. The blossoms looked like they had been painted with affection rather than with professional precision.'

'You saw the irregularity as intentional rather than careless.'

'I saw it as personal. That the craftsman cared about this specific subject in a way that affected how they rendered it.' He paused. 'I have never been able to explain that perception in terms that satisfied me.'

'The irregularity is controlled,' he said. 'The craftsman could have painted the blossoms with the same systematic precision as the carp scales on the larger pieces. The choice not to was a choice. It tells you something about how the craftsman related to different subjects.'

Chen Jian Ming looked at him with the particular expression he had come to recognize in people who had been sitting with an unanswered question for years and were in the moment of receiving the vocabulary for it.

'That is it,' the man said quietly. 'That is what I have been unable to say.'

'Document it,' he said. 'Write what you observed in your acquisition notes — the affective quality of the brushwork, the sense of personal engagement with the subject. That kind of observation is usually excluded from formal documentation as too subjective. But it is pointing at something real: the craftsman's varying relationship to different subjects, which is visible in the work and which distinguishes this from a piece of consistent professional production.'

'You want the subjective observation in the formal record.'

'I want the observation in the record with clear labeling — this is what the examiner perceived, here is the physical characteristic it corresponds to, here is the interpretive claim being made.' He looked at Lin Jing Huo, who was writing. 'Subjectivity labeled clearly is more honest than objectivity that conceals the perceiver.'

Lin Jing Huo looked up briefly from her notebook. Their eyes met for a moment.

After the meeting with Chen Jian Ming, after the man had left with his small vase and a copy of the draft publication and an invitation to be cited in the acknowledgments, Lin Jing Huo sat across from him in the quiet office.

'Seven pieces,' she said.

'At minimum.'

'The incomplete character near the mark on the Macao piece — if it is a character, does it change anything?'

'It adds texture. A craftsman who began to write something and then stopped — why? What were they writing? Was it a name? A date? A phrase?' He looked at the notes on his desk. 'We cannot answer those questions with what we have. But the attempt is itself information. It tells us the craftsman was thinking about how to mark the piece more explicitly at some point and decided against it.'

'Or was interrupted.'

'Or was interrupted. Yes.'

She was quiet for a moment.

'The way you talk about Zhang Yi Bi,' she said carefully. 'It is not the way someone who has only read about historical craftsmen talks about them. It is the way someone who has known craftsmen talks about them.'

He looked at her.

She held his gaze steadily.

'I am getting closer to being ready to hear the story,' she said. 'Not today. But closer.'

He held the moment — the quiet office, the seven-piece evidentiary record spread across his desk, the woman sitting across from him who had been watching him for over a year and had arrived at the edge of asking the question she had been building toward since the hospital.

'When you are ready,' he said, 'I will find a way to tell it that makes sense.'

'You do not know yet how to tell it.'

'I know what is true. I am still working on the form.'

She nodded — a small, accepting nod.

'That is honest,' she said.

They returned to work. The formal publication was two weeks from submission. The distribution list had grown to thirty-one people across six countries. Master Chen's restoration records had arrived and contained two full technical profiles of his restored pieces that confirmed the interior glaze characteristic in terms specific enough to add substantially to the evidentiary case.

He worked through the afternoon and into the early evening, and when he finally put the drafts aside and looked up, Lin Jing Huo had already gone home.

He sat alone in the office for a while before leaving.

He thought about the incomplete character on the base of the small plum-blossom vase. The attempt and the abandonment. The trace that remained.

Every craftsman left traces they did not intend. Habits so deeply embedded in the body that they executed without awareness. These were not the traces the craftsman chose to leave. They were the traces that left themselves.

He had left such traces in everything he had made. The curve under the base of every piece, yes — that was deliberate. But also the specific sequence of operations he used when glazing the interior of a narrow-necked vessel. The way he handled the transition between glaze and unglazed foot ring. The precise degree of pressure he applied when smoothing the shoulder of a vase before the final trimming.

These were his. Unalterable because they were too embedded in his practice to be aware of, too deeply physical to be changed by intention.

And in every piece he had made that still existed somewhere in this world — in collections, in museum storage, in private hands, in the unknown condition of things that had changed ownership so many times that their original provenance was lost — these traces were present.

Waiting for someone who knew how to read them.

As Zhang Yi Bi's marks had waited.

As everything left by hands that had known their work waited, in the patient dark of the centuries, for the right question to find them.