The formal dinner with the regional officials was held in the main reception hall of the government quarter, a room designed for the double purpose of impressing visitors and conducting the kind of social business that was not quite official enough for the council chamber but too official for an ordinary dining room.

It was the last evening in Varath. The investigation had occupied six days instead of the planned five, and the governor, a plump affable man with a gift for saying nothing at length, had insisted that the visitors could not leave without a proper table. It was, Dara Sein had warned them, unavoidable. The reception hall was a long room of cream stone with arched windows on three sides, tall enough that the evening light from the harbor came in at an upward slant and made the ceiling look like the inside of a shell.

Naia had positioned herself near the south-facing window before most of the other guests arrived. This was, she would have said if asked, because the south window offered the best angle for observing the arrangement of the tables and the port district visible in the middle distance. She would have said this because it was true. She would not have mentioned the other thing, which was that she always stood near windows when she was required to be in rooms with many people she did not know, because a window made a room feel less fully enclosed.

She had been doing this since she was approximately twelve years old. She had never examined the habit closely enough to give it a name.

She held a glass of the governor's pale sweet wine, which she would not drink, and a folded sheet of notes for the speech she would be expected to answer, and she watched the room fill. Magistrates in their dark robes. The harbor master with a salt-burnt face. Two wives with painfully bright smiles. The head of the cloth merchants' guild, whose wrist, she noticed, was wrapped in an embroidered cuff that looked newly made.

Reth appeared at the edge of her vision. He was speaking with two of the escort soldiers and telling what appeared to be a funny story, to judge by the quality of the attention he was receiving, but he broke off from it long enough to survey the room in the comprehensive way he always surveyed rooms. Then his attention moved to where Daven was standing.

Daven was at the center-left of the hall, among the cluster of the harbor master's officers, a position that offered the clearest sightlines to the door, the windows, and the largest concentration of guests. It was the correct tactical position for a man responsible for the safety of the occupants. It was not the warmest position in the room. It was not the one with the best view.

Reth looked at that position. He looked at Naia, standing by the window. He looked at Daven again.

Daven moved.

He did not move with purpose, like a man crossing a room toward a destination. He moved in the way of a man making a small, casual adjustment to his position, the kind of drift that happened at social gatherings when people shifted from one part of a room to another without strong directional intent. A word with a magistrate. A step to the left to make way for a servant with a tray. He ended up near the south window, a good eight paces from where she stood, with a sightline to the door that was marginally worse than his previous one and a view of the harbor that was considerably better.

Reth observed this. He took a sip of the governor's wine, which he held the way soldiers held drinks at formal functions, lightly, as a prop rather than as a pleasure. He said nothing. But the corner of his mouth rose by perhaps a millimeter and stayed there for some time.

Some minutes later, without any apparent decision on either side, the eight paces had become two. He stood at the edge of the window light, and looked out of the glass, and said, after a pause, in the tone of a man reporting a measurement, "The view here is better."

"It is a harbor," Naia said.

"It is a good one." He looked at it. "I did not think I would like the sea."

"You grew up in the mountains."

"Yes." A silence. "It is less quiet than I expected."

"It is never quiet. It only seems so, from a distance."

He glanced at her sidelong, just once, and she had the distinct impression that she had said something she had not meant to say about more than the sea. He turned his eyes back to the water. They stood there, an arm's length apart, the harbor lights multiplying in the glass, and for the length of a long breath neither of them did any work at all.

The head of the cloth merchants' guild found her at the window not long after the fish broth, a tall stooped man with a cultivated moustache and an embroidered cuff of green and silver thread wrapped twice around his left wrist. He bowed, with an old-fashioned courtesy that had been out of style for thirty years, and asked if she had a moment.

"Of course."

"I am told you are the one who is writing it down." He glanced at her notebook. "The Fading. I wanted to tell you that my wife's mark went on the sixth of this month."

"I am sorry."

"She is well. She is entirely well. She says it is a relief to be rid of an obligation." He smiled, thinly. "I made the cuff. She did not ask me to. I found that I could not look at mine without thinking it would be next, and then I found that I could not look at hers, so I made them both a cover, and I have not looked at either since."

Naia looked at the cuff. The stitching was exquisite, a pattern of small interlocking waves, and the work had obviously cost many hours of sleepless nights.

"If it would help the investigation," he said, "I should be glad to tell you how the guild first noticed the pattern. We keep very good records of who buys cloth for weddings."

"That would help a great deal."

"Then I shall have them sent." He bowed again. "I only wished to say that it was kind of you to come. We are not accustomed to being visited."

She watched him go back to his table, an elegant, tired man with a cuff on his wrist. She wrote, Guild records of wedding cloth purchases: possible leading indicator, and found that her hand was not quite steady, and waited until it was.

The dinner proceeded through the standard phases of formal regional dinners. The governor made his remarks, which included thanks to the Imperial Guard and to the Registry and to a number of persons whose names Naia could not retain. A magistrate presented the local figures, with the dutiful solemnity of a man who has been told what a visitor wants to hear. The food, when it came, was better than the formality of the occasion promised: a clear fish broth, grilled prawns, roasted fowl with citrus, a pudding of rice and sweet milk. The wine did its traditional work of turning an official evening into something closer to actual conversation.

She ate and listened. She had learned long ago to do both at once and to extract most of the useful information from the second while appearing to give her full attention to the first. The officials were genuinely frightened. It came through in the specific way they talked around the thing they feared, naming it by implication, as people spoke of a structural flaw in a house they were still obliged to sleep in.

"We have had to postpone the lantern festival," the harbor master said, to no one in particular, between mouthfuls. "Three years running we have held it. The committee did not think it would be seemly."

"It would not be," said a magistrate.

"It would be a lie," said someone further down the table, and then looked embarrassed and reached for his water.

Naia filed that sentence, and found, a moment later, that she was looking at Daven across the room, who had heard it as well, and whose eyes had come up from his plate and met hers for a quarter of a second before both of them looked away.

The harbor master woke with a snort during the pudding, announced to the room that he had been resting his eyes, and fell asleep again almost at once. There was a ripple of tired laughter. It was the first genuine laughter Naia had heard in Varath, and she noted it, as she noted everything, in the private ledger that was not part of the investigation: the sound of a room briefly forgetting what it was afraid of.

After the pudding, the governor withdrew to his study with two of the senior magistrates, and the party loosened. Voices rose. A woman near the door began to laugh, a high and brittle laugh that stopped abruptly. Naia took her glass and her notes and went to the window again, where she watched the harbor lights prickle on one by one across the dark water, and let her mind go a little slack, the way a muscle goes slack at the end of a long carry.

"Scholar." Dara Sein had come up beside her, silent as a cat. She was holding a cup of tea, which she had asked for in place of wine. "I wanted to thank you."

"There is nothing to thank me for. I have found very little."

"You have found that there is a pattern." The older woman's voice was low. "In thirty years, I have never been taken seriously by the capital until this week. You wrote to me by hand. You asked the cloth merchants what they thought, not what the policy was." She turned the cup in her palm. "I do not suppose it matters to the Fading. But it matters to me."

"It matters," said Naia, who was not sure what else to say.

"Good." Dara Sein looked at her for a moment, and then at the room, and then, with the faintest shift of expression, toward the man by the window two paces away. "He is not what I expected."

"The Commander?"

"You said the same thing about him a week ago, I think. That he was exact." The older woman smiled thinly. "I find he is also quite attentive."

"It is part of his duty."

"Of course it is." She drank her tea. "I will see you in the morning, Scholar."

She went. Naia stood with her glass and thought: I have been told twice in two weeks that he is attentive, and I have not yet worked out what response is required. She did not answer the thought. She turned back to the window.

When she looked again, it was almost eleven. The hall had thinned. The magistrates had gone home. The harbor master was asleep, upright, in an armchair by the fire.

She went to the small side room the governor's secretary had provided for the working session, a snug chamber with a table and four chairs and a window facing south over the harbor. She spread out the additional data Dara Sein had provided and began organizing it against the framework she had built from the morning's analysis.

Daven came in without knocking, sat down across from her without being asked, and laid out his own notes from the afternoon's conversations.

This had stopped surprising her at some point in the last four days. They worked through the material in parallel, passing relevant pieces across the table with the efficiency of two people who had already developed a shorthand for what the other would find significant. The room was quiet around them. The sounds of the official dinner were muffled through two walls and a corridor. He had chosen the chair nearest the window, and she, without noticing she was doing it, had chosen the one beside it, so that they sat side by side at the corner of the table, with the dark harbor spread out before them like a second document.

At one point, she set a file on his side of the table and reached for the adjacent folder at the same moment he reached for it, and their hands arrived at the same cover within the same second. She drew hers back. He took the folder and passed it to her without comment.

"The facilitation program records," she said, setting the folder in its place. "The regional office has complete data going back eight years. I will need to cross-reference the facilitated cases against the independent cases across the full period, to see whether what I found on Tuesday is longitudinal or recent."

"I will ask the governor for the administrative codes tonight. The regional archives need two signatures."

"Thank you."

They went on. At some point, she reached the end of a data sequence and looked up from the page and found that he was looking at her rather than at his own notes. He did not immediately redirect his attention when she looked up, which was unexpected, and she experienced the brief and specific sensation of being looked at by a person who was not performing attention but actually practicing it.

He dropped his gaze to his notes. She returned to her files. For a minute or two neither of them wrote anything.

The door opened. Reth looked in.

"The governor's secretary asks whether the investigators require anything further from the kitchens before the staff are released for the night."

"No," Naia said.

"No," said Daven, at the same moment.

Reth looked at both of them for a little longer than the question required. "Noted," he said, and closed the door. She heard his footsteps retreat down the passage, followed by a low sound that might have been a cough and might not.

She was aware, in the hours that followed, of something in the working session that was different from the earlier ones, though she could not have named the mechanism. They covered more ground in less time. They needed fewer words. When she was close to a conclusion that had a gap in its methodology, he found the gap before she had fully articulated the conclusion, which was not a thing that happened in her professional life with any frequency. Once he laid his finger lightly on a line of figures on her page, a quarter second before she would have misread it, and she looked at the line and saw the error and corrected it, and neither of them said a word.

She found that she had not said thank you. She also found that she did not need to.

By the time she squared the last sheet into its place and sat back, the harbor windows were fully black, with only the lights of the fishing boats scattered across the water like dropped coins.

"I should check the overnight positions of the escort," Daven said, rising.

"Yes. I will arrange these for the morning."

He went toward the door. He stopped before he reached it, without turning around, with one hand on the frame, and stood for a moment in the attitude of a man deciding whether to say a thing he had not yet decided to say.

"The Tarens," he said. "The husband said he does not remember what they were arguing about."

"Yes."

"That is the part that stays with me. That he does not remember what was worth arguing over."

She looked at him. His back was to her, a straight dark line against the lamp-lit passage.

"It often is," she said, quietly. "The specific content of the thing. It is rarely what mattered."

He was silent for a moment longer. She watched the line of his shoulders, which did not seem to belong to a man who had done a day's work. It looked like a person who had set something down a little way from himself and was not quite sure where.

"Good night, Scholar Solven," he said.

"Good night, Commander."

He went out. She sat on in the empty room, among the neat sheets and the dark window.

It was south-facing. She had chosen this room, among the three the secretary had offered, partly because it was south-facing, and she had not examined why that had registered as relevant when she was making the choice.

She gathered her papers. She took the lamp from the table and carried it out into the corridor, along the passage and up the stair, and she sat on the edge of the narrow bed in her room for a considerable while before she lay down, thinking about nothing in particular, which she almost never did.

Below her, in the hall, a man in the dark uniform of the Guard stood very still at the south window, where a woman had stood earlier in the evening, with his hands clasped behind his back and his eyes on the harbor. He had not sat in that spot because it was tactically sound. It was not tactically sound. He had sat there because it was where she had stood.

He had known this when he moved. He had known it before Reth looked at him. And he had not stopped.

He stood a while longer. The dark water moved. The fishing boats went out, one by one, into the night, carrying their small lights.

He did not give the thing a name. He was not, as yet, a man who gave names to such things. He turned from the window and went up to find the escort, and the stairway was cold and well lit, and behind him the harbor went on being a harbor.

Upstairs, Naia thought about nothing in particular for a surprisingly long time before she went to sleep.