August 31, 2053, daytime. She came to the machine room in the morning as always, and what her hand found in her pocket was still only the key. Eleven years without a pen, and the motion hadn't changed—the hand went in first, found the key, and only then remembered there was nothing to carry. The S table stood checked to line 11,537. The man doing the checking was a little past forty, eleven years at it; the rule of reading aloud hadn't changed, only the reading had gone softer. The table had come into his hands in its eleventh year, and the flyleaf of his own duty book carried a line now, copied from that year's: As long as it doesn't move, someone will keep watching. He had been twenty-five when he copied it, and when it was done he had shown it to the young man of those days—who now brought young men of his own, two generations standing before the same table. She sat at her old place and listened. The machine hum was still three layers: fans, current, and a bottommost one like a very distant tide. Ten years, and no one had ever said what that was; she didn't ask. That year the graduate student said it was a pump. She said no; a pump she could hear. Later he heard it himself—it wasn't a pump. Which layer it was, the station never opened a project on, and nobody meant to—some things, the moment you make them a project, go cheap. The night to come held the first presumed light.
There had been a night in April. The city's astronomy societies, going by the appeal written eleven years before, had fixed the date: April 14, a Wednesday, the lights out two hours by consent. The two hours went dark in truth; the streets went down patch by patch, dark in step. The rooftops were full, phones held facing down, no one shooting—nothing would come of it, everyone knew that; what a shot held was a memento. The light didn't come. The sky held everything it should hold, three planets, and nothing besides. The next day the internet blew up for three days; "Did they figure it wrong?" ran a week. A program brought in an expert; four minutes he gave to the light's road, half a minute to the window slipping, and when the host asked was it wrong in the end or not, the expert said: The page is wrong, not the account. That line became the title of the whole storm. The station put out a statement, not long: nothing had been figured wrong. The April line on the countdown page was the old table's account—the table-set times of impact plus the light's road, the month that arithmetic came out to. The window had been slipped afterward; the month on the table had never followed it. The page was the old page; the account was the old account. The light walks its own calendar; presumed to arrive between the end of August and the first of September. The statement went out, and some wouldn't have it: knowing the page was wrong, why not change it. The station explained no further. Change it, and the people who had lived those years by staring at that page would have nowhere left to stare. The countdown page holds that line to this day: April 2053. Her old answer, "Depends on the weather that night," was dug up and argued again—they said she must have known the winter before that the page had jumped early, and that was why she wouldn't say it dead. On the night of April 14 she was at home, Zhou Yao keeping her company; the two of them never looked at the sky. It was raining.
September, this end: the station sent no notice. People came on their own. The register went over page after page; the purpose column held one thing and another, most of it the old format: to look. Some wrote it out full, not a character more, not a character less: to be there on time—the one who wrote it was a retired old comrade; the window year, his leave slip had said just that. The station people knew the hand and put him up front. Hu Yisu was three years off the training post. Six hours by bus, and coming through the door he went first to the wall—Engineer Ma's sentence still there, Ursula's postcard still under the glass plate. He stood a while and said: It's all here. Someone asked after his retirement; he said he had taught eight years, and the last lesson had been on those four words, presumed executed as scheduled. In the fourth year of teaching, he said, a student asked him whether those four words weren't a way of shrugging it off; he set the whole class to go home and read the window records from eleven years before and answer after. Two of that class stand duty at the station now. Engineer Ma was past sixty, hair gone white, the first to come; he took the place by the power cabinet—the one Hu Yisu had stood at eleven years before—and said that was where you saw the clock straightest. The graduate student was forty, and on duty. More than half the families' quarter came; the children who had once counted antennas brought children of their own, and the children squatted outside the station counting antennas again—counted six, looked up, and asked why only six. The grown-ups said the rest couldn't be seen; they were in the sky. How many were in the sky, the children asked. Forty-odd, said the grown-ups; nearly there. Nearly where, the children asked. The grown-ups pointed at the sky and said: Nearly through the door.
Zhou Yao came three days early. She was forty-three this year, thirty years of the knife in her hands, her knuckles broader than her contemporaries'. She slept in her old room at home; the picture she had drawn at fourteen was still pinned to the wall. For three days she kept her mother company by day and sat at the station by night. The mother didn't say much; she didn't either. One night she sat in the back row of the machine room, listened a long while to the three-layer hum, and asked: What's the bottom layer. The mother said: Don't know. Zhou Yao said: A thing you don't know—first time I've seen you not run it down. The mother said: A thing in the ear—who's the checking for. Zhou Yao didn't take it up. She took the words down. Eli had gone, the year before last. This year his son carried that half can of aviation gasoline back to the station. The can had rusted; the seal was one Eli had pasted himself, a single line written on it: Not done wiping. The station put it into the station-history cabinet, on a shelf with Lao Wu's label. Setting it there, the man in charge of the cabinet went through the catalog half a day; there was no such class. In the end he added a line by hand: Tool, not used up.
At night the machine room filled, like that small-hours room eleven years before. The clock was still that clock, the second hand walking one square at a time. The folding stools came out of the storeroom, stacked half a man high, and inside one night shrank low again. She sat in the middle. This time she carried no pen, and no book. The pocket notebook was in her left breast pocket, holding two lines of dates. The canteen man had his fire pressed down to the smallest; every half hour he came over for one look, and when he'd looked, went back. At ten to three the machine room went quiet. Quiet wasn't in the rules; people went quiet on their own—the talkers stopped in the middle of a sentence, the coughers went out to cough with a hand over the mouth. The report chain on the orbit side was already warmed through: report first, recheck, report again, sign off level by level, no step spared—eleven years and four months of road, and this last stretch would walk by the rules too. Someone asked under his breath why even the last stretch had to run the chain, and the man on duty answered: Because the chain doesn't cost eleven years. We can afford it.
At 3:11 the report reached the station. One line on the terminal, a time code at the head: that hour of eleven years before, that impact—the light had come.
No one in the machine room spoke. Some were waiting for the second line, the one rechecked and signed. She didn't wait. Her fingers knocked twice on the tabletop. Zhou Yao was beside her; one hand came over hers, and she said: Mom, I heard it.
The rechecked line came seven minutes later. The two lines matched, all green. Someone let a breath out, someone went for water; the footsteps scuffled a little while and went quiet again. The small-hours machine room kept a rule outside the rules: no one said those two words first. Arrived—it couldn't be spoken. Spoken, it would go light. In the end it was the canteen man who asked out from the doorway: Did you see it. The man on duty answered: Saw it. That one question, one answer, and the thing counted as said. She took the little notebook out, turned to that page, two lines of dates side by side: April 2053, the table's; and beneath it the line she had added the year before, September 2053, the light's. Under the second line she drew a short pencil stroke. Not heavy. You could see it.
After daybreak, the reckoning. The archive room called up the copies of the forty-four-line message from eleven years before and spread them page by page along the long table. Spreading the pages should have been the young ones' work; the old comrades fought them for it—these pages carry our signatures; we'll do it. Forty-three signatures, and the joint line there too, two men's names on one. One old comrade found his own line and pointed it out to his grandson: That character is your grandfather's. The grandson asked what the line meant. He said: It means that day, I was there. Over at the telemetry screen, No. 1's last pack had reached the station the night before—a serial number of seven digits, and against the two runs she had worked out that small-hours morning, not one digit off. She turned the little notebook to the page with the slip of paper in it, the two numbers lying side by side; she looked, and closed it. From that pack on, that one's sequence updated no more. Over the days that followed, the forty-four sequences would finish one by one, until September 9, when the last pack of the last one arrived, and the queue on the screen would stop—like a line of people walked to the foot of a wall and standing set, going no farther, and not scattering either. No one at the station proposed shutting the telemetry screen to save power. The queue had stopped; let it stand stopped. A stopped queue is account too. The S table that day: line 11,538, 0.37. She ran the three layers of the account through once in her mind: the table says it was done, the packs record how it went, the light proves it came off. On the wall, Engineer Ma's sentence with no name under it—she looked up at it once. It matched.
At noon the canteen added the extra dish. A new hand at the wok, the old man's son, the ladle craft running in the family. Someone needled him: same again tomorrow, and every year after. He threw a fistful of scallions into the pot and said: This time it isn't "same again tomorrow." No one drank at the meal; the station's rule, nothing on a duty day. There were those who carried their bowls to the machine room and ate with the rice set beside the terminal. No one stopped them. That day the terminal's page carried the catalog of the forty-four-line message: forty-four lines on the page, one line to each. That evening the city lights went out two hours by consent again—no appeal this time, no announcement; from seven-thirty they went down patch by patch, darker in step even than April. April's dark was waiting. This dark was receiving. On a rooftop someone counted the districts going dark, gave it up halfway, said: more than can be counted. The news ran a special and used that comparison audio again—the scripted sentence, the broadcast sentence, two seconds between. When it played to the seconds, she switched the television off. Zhou Yao said: Not listening. She said: This one I already have.
On the evening of September 9, the last one's light arrived. Forty-four lines, every line matched. Nine days of confirmation, nine days of reports, all green. On the copy of the last report the station people talked over whether to sign—no signature cell for those not on duty. In the end they signed in the page's margin, a dozen-odd names, crowded in, and beneath them a note: signed off duty; present. That copy later went into the station-history cabinet, a shelf with the gasoline can. The station archived those days' pages, the countdown page first of all—that line, April 2053, unaltered, stored as it stood. The archival note read: the difference between the table-set date and the arrival, four months and seventeen days, caused by the window's slipping; the two lines stand side by side in the account; not amended, not reconciled. The note was drafted by the young man. At "not amended" he had meant to lift the pen, and then he added "not reconciled." She said the adding was right. The account can't be changed, and needn't be reconciled—the unreconciled part is the road that was walked.
There was one star more, its light farther out, thirteen years more to walk. That year she would be eighty-five. She copied that line into the little notebook too, and closed it. Three lines of dates in it now: one the table's, one the light's, one not yet arrived. Zhou Yao was at her side watching when she copied the third. Zhou Yao asked: Will you live to see it. She said: On the account, yes. Zhou Yao said: I'm not asking about the account. She said: Then we'll see when the time comes. Zhou Yao laughed: That line of yours, I've heard all my life.
In October the archive's digitization came to its end. Six years the work had run, and every sheet of paper in that Shanghai room had passed under the light. One item in the final examination report concerned the two instances of "Reviewed" on that 1968 field-notebook page: two ballpoint pens, the pen pressure continuous, the stroke habits one, the ink forty minutes apart—conclusion: the same hand. The first pen had run dry mid-word; the second had been taken up. The name was still missing. The report's own line ran after: The man left no name. The act left its mark. The report went around the station. It reached the graduate student, and he said one sentence: Thirty years of waiting, and what came was one step nearer—still no end of it. Engineer Ma said: Things like this have no end. A step nearer is a step.
She read the report at home. When she'd finished she left the page open, sat alone a while, and logged into her old mailbox. First in the drafts, the title one word: Shoulder. Size 2,041 bytes; the timestamp thirty-one years unmoved. In thirty-one years she had changed computers three times and moved the mailbox twice; the letter had moved along with them, like a piece of luggage never unpacked. She opened it.
The letter was not long. She read from the first line to the last, slowly; once she rose and poured a glass of water, came back, and went on reading. It had been written to everyone—the salutation began Dear all. Two paragraphs in, it turned into a letter to herself: the "you" of the third line struck through, changed to "I." Halfway through the changing, the changing stopped, and there it stood, thirty-one years. The thing the letter told of—thirty-one years before, she was forty, alone in the small hours, trying to give it a name. The last line was where she stayed longest: It was not the name of a signal. It was what I needed to be a name, that night.
She printed the letter. The paper came out of the machine still warm. She looked on the desk for a pen and took first an old issued pen—the lacquer long gone from the barrel, the nib dried. She dipped it in ink, wrote the first character of "Reviewed," and halfway into the second, the pen went dry. She stopped, thought of the report she had read that morning, and laughed. She opened the drawer; in it lay a pen Zhou Yao had left behind. She took it up and finished the signing: Reviewed. Signed, she sat still. She laid the two pens side by side on the page and looked a while. One near dry, one with ink; the same day, the same hand. On the paper, two lines of writing: one line an old date, one line today's. Then she folded the paper into quarters and put it into her left breast pocket.