Senior Auditor Ilvane Rook arrived on the eighth morning, in a skiff with a black sail, and the first thing Suzu noticed about him was that he was kind.

It was a very particular kind of kindness, and she did not trust it at once, because she had met it before. It belonged to the teachers who remembered your name in the first week of term. It belonged to the school nurse who always had a spare ribbon. It was the kindness of people who had spent many years being responsible for the young, and who had come to like it.

She watched him step off the skiff from the fourth-landing balcony, where she had been told to wait. He was old for a Kethari, or what she took to be old: his skin was a darker gray than Sael's, almost slate, with a fine web of lines at the corners of his eyes, and his hair was cropped close and silver as a new coin. His coat was the same pale cloth edged in navy, but longer, and heavier, and it moved around him with the slow weight of a thing that had been worn for decades. He carried no ledger. He carried a plain wooden cane that he did not appear to lean on.

He stopped on the landing and looked up, directly at her, as though he had known exactly where she would be standing.

Then he smiled.

Suzu, who had been raised to return a smile, found that her face had done it before she gave permission.

"Do not go down," said Sael's voice, very close behind her. She had not heard him come. "I will bring him up. Please wait in the hall. Keep the book on your person. Do not offer it."

"Is that a regulation?"

"It is advice." He was already moving past her to the stair. His coat was buttoned to the throat. His hair had been combed twice; she had watched him do it. "Please say as little as is accurate."

She had never seen him nervous. She was not certain she was seeing it now. But his left hand, at his side, was perfectly still, and she had learned in eight days that his hands were only still when he was holding something down.

---

The hall was the long dry room at the base of the tower, with the water-light moving in nets across the floor. Sael had set a table in the middle of it and two chairs on one side and a single chair on the other, like the arrangement for an examination. There was a pot on the table, and three small cups. The tea was already poured. Suzu noticed that one cup had been set a little apart, and that it was not steaming.

She sat in the single chair, with the inventory book flat against her ribs under her folded arms.

Rook came in with the cane tapping, once, twice, on the stone, and Sael a pace behind him with his hands behind his back. The old man crossed the room without hurrying and stopped at the table and looked down at the cups.

"Ah," he said. "You remembered."

"Yes, Senior," said Sael.

"Cooled, and no salt." Rook lifted the apart cup, and sipped, and closed his eyes briefly. His voice was warm and unhurried, with a faint dry rasp at the edges, like a page turning. "Eleven years, and you have never once forgotten. Do you know, Sael, I tell the new ones about you. I say, there is an Auditor in the south who can make tea to a man's exact preference without being reminded."

"It is only a record."

"It is only a record," Rook agreed, gently, and sat down. The skiff's black sail, Suzu thought, had not been a warning. It had been a coincidence of color. He sat the way very old trees stand: not rigid, merely finished with moving.

He turned the light gray of his eyes upon her. They were the color of river ice. She waited for the clear inner lid to slide across them, as Sael's did, and it did not. Not then, and not at any time in the hour that followed. She would think about that later, lying awake. Sael's lid moved when he was surprised, or uncomfortable, or moved. Rook's never did. Either he felt nothing, or he had learned a very thorough stillness.

"Arimura Suzu," said Rook. "Representative of the party of five. Eighteen years. Is it all right if I call you Suzu? It is easier on the tongue."

"Yes, sir."

"I am told you are a clever girl."

"I try to be careful."

"That is better than clever." He folded his hands on the head of the cane. "I will not keep you long. It is only that one prefers to see the persons in a file, now and then. A file is a very thin thing, Suzu. It tells you where a person stands and not why."

"I understand."

"Do you? That is rare." He glanced up. "Sael. Your report of the sixth day arrived late."

Suzu felt the air in the room alter by a degree.

"Four hours and nine minutes," said Rook. "In eleven years I have not received a late report from you. I want to be clear that I am not reproaching you. I am noting it, because it is the first. I find the first of anything interesting."

"There was a verification delay," said Sael. His voice was perfectly level. "The ward's party produced a revised window figure. I wished to confirm it before transmission."

"And did you?"

"Yes. The revision stands."

"Sixteen days, I read. Where the table says nineteen." Rook shook his head slowly, and for a moment the old, fine face showed something almost like wonder. "A copper wire. I have lived long enough to be corrected by a copper wire. You were right to wait, my boy. A premature figure is worse than a late one."

Suzu let out a breath she had not known she was holding. Beside the doorframe, Sael's shoulders came down a fraction of an inch.

"Now," said Rook, and turned back to her, "tell me about your counting."

---

She had prepared for questions about the gate. She had prepared for questions about the club, the equipment, the experiment, the hour. She had a column of answers in her head, arranged by likelihood. She had not prepared for this.

"I'm sorry?"

"You count your companions. Frequently. It has been noted by the Auditor, and I observe it myself, now: your lips move, a little, when you look round the room." His tone was mild as milk. "I am not asking in order to find fault. I am asking because it is a habit, and I am an old man who collects them."

She felt the heat start at the back of her neck. "It's a safety measure."

"Of course."

"A party should be counted at intervals. It prevents anyone being left behind."

"A sound principle. And at what interval do you count?"

"Four times a day at minimum."

"And in practice?"

She did not answer.

"Eleven in one evening, I believe," said Rook. "The Auditor was thorough." He said it without any edge. "Do not be troubled, Suzu. I merely observe that a habit is a rule one has forgotten making. And I wonder, sometimes, what the rule was, and who made it, and whether the person who made it was frightened."

The room was very quiet. Water slid and glittered on the floor. Somewhere above them a bell rang the half-hour.

"I think I'd rather not discuss that," said Suzu, in the voice she used for the vice principal. "With respect."

"Quite right." And Rook, to her surprise, smiled again, and nodded, with the air of a man who has had his answer. "A good answer. You have a rule about rules. Very well. Let us talk about your party."

He questioned her for the better part of an hour. It was the gentlest interrogation she had ever sat through, and the most thorough. He asked about each of her friends, and she answered, and he wrote nothing down, and she became aware, slowly, that he was doing exactly what Sael did: he listened as though every word would be required of him later. He asked her how the club had come to the pool. He asked why Ren was sullen. He asked what Haruto was afraid of. Suzu said, before she could stop herself, "Being left out of things," and then wanted to take it back, and could not.

"Good," said Rook softly. "That is a true thing. You see them clearly."

She was starting to feel as though she had been turned slightly inside out. She pulled her sleeves down over her wrists. The inventory book was warm against her ribs.

"Now," said Rook. "I must ask to see the effects."

---

She had known it was coming. She had known since the moment Sael said do not offer it. She had gone over, in the long hours of the night, a half-dozen versions of this exchange, in which she handed it over, in which she stalled, in which she said it was lost. None of them had been any good.

"I have very few," she said. "The Auditor issued me a personal ledger. It is the only item."

"Then I will see the ledger."

She looked, for one instant, at Sael. He was standing very straight at the edge of the light, his hands folded behind him, and his face was composed into the smooth, blank neutrality she had first seen on the stair. He did not look at her. He did not give any sign at all.

She took the book out and put it on the table.

Rook picked it up. He turned it over, examined the spine, and set his thumb to the cover with a faint look of pleasure, as though the weight of it recalled something. He opened it to the first page, and she watched his eyes move.

Terms, said the first page, in her small upright hand. Five numbered conditions, each with a sub-point, and the sixth underlined once. He turned a page. The columns of the inventory, the careful lists of names, the times and positions of each of her friends, east quay, 7:40, a tick beside each. He turned another. The windows.

She had known she should not have written them. She had written them anyway, because it was the only way to hold them. Window one, sixteen days, ten minutes. Window two, roughly forty-five days after, seven minutes. Window three, four. Window four, unknown. Window five, closed. The long box she had drawn around the whole column. The word unknown, in the margin, and beside it, in very small script, a line she had added late one night and half forgotten: he does not like being asked to hope.

Rook read it. He read it for a long time.

"Clause eleven," he said at last, quite gently, and looked up. "You will know, I think, that no outsider may keep a record of Kethari law."

Her mouth was dry. "I was told that."

"And yet."

"Senior."

It was Sael. He had not moved, and his voice had not risen, but it carried across the hall like a struck glass. "The ledger is a requisition. It was issued to the ward by my authority under the personal effects provision. I inspected it on the first night, and I permitted its use."

"You permitted it."

"Yes."

"It contains the interval progression of the gate."

"It contains the ward's own inference from my orientation of the party. It is not a copy of any statute. It is a student's notes." He did not pause. "Under the personal effects provision, an outsider may record her own observations. I judged that the entries fell within it."

Rook said nothing for what felt like a full minute. He turned another page. He turned it back. He ran one long finger down the margin where the small line was written, and she saw the finger stop, and she did not breathe.

Then he closed the book.

"You inspected it," said Rook.

"Yes, Senior."

"Thoroughly."

"Yes."

"And you are certain."

"I am certain."

Sael straightened. It was very slight. It was a change of perhaps half an inch, a lifting of the chin and a settling of the shoulders, as if a thread had been drawn up through the top of his skull. It was the sort of movement that no one would have noticed who had not spent eight days watching him stand still.

Suzu noticed.

She saw it, and she saw, a heartbeat later, that Rook was looking at his student's shoulders, with the pale unmoving eyes, with an expression she could not read at all.

"You have never lied to me," said Rook. It was said very softly. It was not a question.

"No, Senior."

"Then I will not ask you whether you are lying now." He set the book down on the table and slid it back across the stone to her, with two fingers, as one might return a borrowed pen. "Certainty is a gift, Sael. I would not wish to take it from you."

Suzu took the book. Her hand was shaking. She put it back against her ribs, and held it there, and did not look at either of them.

---

Rook stayed another half-hour. He spoke of small things. He admired the light in the hall. He asked after the tide-clocks, and Sael recited their errors, and Rook laughed, a dry pleasant sound, and said that he had once filed a complaint about the same drift himself, long ago, with exactly the same result.

He was leaving. He had risen from the chair and set the cane on the stone, and was drawing his coat straight, when he stopped, with his head slightly tilted, and looked at Sael's left hand.

The forefinger and middle finger were moving against the seam of the trousers. Tap, tap, tap, tap. Even, small, precise. Suzu had not known he was doing it.

"Ah," said Rook. His voice had become, if possible, softer. "You still do that."

Sael looked down. The fingers stopped. "Senior?"

"When you think. Your father did it too. Precisely so, two fingers, always the left." The old man's smile was a small, fond, tired thing. "I used to tell him he would wear a groove in the table."

The silence lasted perhaps two seconds.

"I have no record of that," said Sael.

"No," said Rook. "I do not suppose you do."

He said it so kindly. It was exactly the kind of kindness she had thought she recognized on the landing, the nurse with the spare ribbon, and it was only now, watching Sael's face, that she understood how that same tone could be used to close a door.

Sael's lid slid across his eyes, and stayed there for a long beat.

"Be well, my boy," said Rook. He laid one hand briefly on Sael's shoulder, and withdrew it. "Eat something. You are thin."

Then he went out, and the cane tapped away down the stair.

---

The skiff pushed off. Sael stood at the head of the stair and watched it go, and Suzu stood a pace behind him, and neither of them said a word until the black sail was a small mark on the green.

"Why did you do that?" she said.

"Do what."

"You know what." She was keeping her voice low and steady, with some effort. "You told him you inspected the book. You told him you permitted it. You didn't. You handed it to me and told me it was a requisition and you walked away."

"I inspected it at the time of issue."

"It was blank at the time of issue."

"That is correct," said Sael. "It was therefore in full compliance."

"That isn't what he asked."

"It is what I answered."

She stared at him. He continued to look at the sea. There was a very faint flush along the edge of his jaw, a shade of darker pearl. "You said you were certain," she said.

"I was."

"About what?"

"That an incomplete file should not be confiscated." The words came out stiff, rehearsed, as though he had assembled them out of the nearest available parts. "A ward's record is not to be removed before the ward's term is concluded. That is clause four, sub-clause six. The ledger is the record of a ward in progress. To take it would have been irregular."

"That's a real clause?"

"It is," said Sael, after a moment. "I believe. It is not usually applied to this."

"You stood up straight."

His head turned. "I beg your pardon?"

"Just before you said you were certain." It was out of her mouth before she had decided to say it. "You stand up straighter. It's the only thing you do. Everything else stays exactly the same. I noticed it the first night, when you told me you weren't permitted to answer something, and again with the clock in the market, and I thought I was imagining it. But you did it just now. It's a sort of, a tell."

There was a silence.

Sael looked at her. The lid slid, and slid back, and slid again: three times, slow, as though he were trying to find the correct setting. For the first time since she had met him, he looked unsure of the ground.

"I was not aware," he said.

"I know. You wouldn't be."

"I have never been told."

"No one else would have noticed." She hugged the book tighter. "I only noticed because I was counting."

He was quiet for a very long time. The tide was running out, and the light on the water had turned from green to a pale, thin gold. When he spoke, his voice was lower than she had heard it.

"You may assume," said Sael, "that I did it for the record. The record concerns the rights of the ward. It is my duty to protect them."

"Is that the reason?"

"It is the reason I am able to state."

She heard the exact shape of that, and did not press. She wrote nothing down. She only stood beside him on the stair, with the sea going quietly gold below them and the old man's skiff dwindling to a speck, and let him have his procedure.

---

Later, in the guest room, with the shutters open to the evening, she opened the inventory book to the last page of her own handwriting, and uncapped the stylus, and wrote: Sael lies by standing straighter.

She looked at it for a long time.

He had lied for her. That was the shape of it, whatever clause he cited, whatever regulation he invoked. He had said certain with the whole of his straight and careful body, to the man who had trained him since he was nine, and he had done it to keep a small waxed book out of an old man's hands. He had done it to keep her notes. He had put his word, which was the only thing he seemed to own, across the table like a shield.

She drew a line through the sentence.

It was not a neat line. It went through the page and left a faint groove on the next. She drew another beside it, and then a third, until the words were gone entirely, a block of dark scratches in the margin, and she put down the stylus and pressed the heels of her hands against her eyes.

He did not do it for me, she told herself. He did it for the record.

The balcony rail was still warm when she went out. The skiff was long gone. The sea lay in broad bands of copper and rose, and in the east, over the quay, a small yellow light was blinking, three flashes, and then a pause, and then three flashes again.

She lifted her hand.

And below her, two floors down, at the foot of the stair, she saw the Auditor of Ninth Tower standing quite alone in the doorway of the lower hall, with his face turned up toward the balcony. He had not been looking for her. She knew that at once. He was only standing there, with his hands behind him, looking at the sky.

But on the old man's skiff, far out, a pale figure was standing in the stern, looking back at the tower. He had not moved since the black sail came about. At this distance she could not see his face. She could only see that he was looking, not at the tower, and not at the boy in the doorway, but at the balcony, steadily, patiently, for much longer than any courtesy could have required.

Suzu lowered her hand, and drew the inventory book against her chest, and did not go in until the skiff was gone.