The Interworld Correspondence Desk's first proper piece of business came looking for them on its own.
That morning, someone knocked on the agency door. The knocks were soft and hesitant—two taps, then three pauses. Anyone could tell it was the sort of client who had paced half the street outside and turned his words over eight times in his stomach before daring to enter.
The man who came in was past sixty. His Sunday coat had faded white from repeated washing, and he clutched his hat in both hands. His name was Rufus, a sail-mender from East Dock Lane who had retired seven or eight years ago.
"This business of mine..." The old man sat in the visitor's chair, rose again, then sat once more. "If I tell you, I'm afraid you'll think I've gone senile."
"This agency specializes in cases no one else believes." Sharlo poured him tea. "Tell us."
"My old woman," Old Rufus said, pinching the brim of his hat, "has been gone six years."
"For more than four of those years, I couldn't see her in my dreams. No one in the city dreamed back then, I know that. It wasn't her fault. But after Relighting Day—" A little light entered the old man's voice. "She started coming. Once a month, regular as clockwork, always around the middle of the month. We never said anything grand in the dreams. We just lived our life. She scrubbed her stove, I mended my sails. Sometimes she stitched soles, then held them against my feet to check the size. Once a month for a year and a half, without missing once."
"Two months ago, it stopped."
The old man's grip tightened on his hat. "At the middle of last month, I waited all night. This month, I waited all night again. She didn't come."
"So I wondered..." He lifted his head. His eyes were red, and his voice sank. "Did I do something to anger her? Did something happen to her over there? Or... has she forgotten me?"
"The neighbours say I've become obsessed. They say a dream is just a dream. But I know it isn't." The old man spoke one word at a time. "A year and a half. Sixteen times. Every time at midmonth. That wasn't a dream—that was her coming to see me. Someone that punctual about visiting family wouldn't leave without a word."
Sharlo and old Vane exchanged a look.
"Old Rufus," Sharlo said, "you have not gone senile. Everything you said is true—that was not a dream. She came to see you. Dreaming of the departed means they have come to see you—not figuratively. Truly."
"This agency accepts your case," he said. "And the means are ready to hand. We'll send a letter over there for you and ask."
The old man stared. "Send... send a letter over there?"
"A new service of ours." Old Vane rose from behind his little desk, his copper bell chiming softly. "Interworld Correspondence. Sir, step this way and register."
They used Bridgehead Hall's registration format: name, reason, and whom he wished to ask after. In the field marked "Whom," Old Rufus gave his wife's maiden name. Then, still uneasy, he added, "Put down her family's surname too. There are so many people over there—best not mistake her for someone else."
The letter went out that very night. No one at the agency had seen the dispatch ritual before. Old Vane copied the letter onto a tiny sheet, rolled it tight, and sealed it with wax. After nightfall, he carried a small blue-green glass lantern to the canal, found a stretch of still water, tied the sealed letter to a little sinking stone, and lowered it beneath the surface—the Stillwater Society's sunken-lamp dispatch, a method taught by the Old Boatman, used in reverse.
"Still water joins the river, and the river has a postal route," old Vane said. "Three days to Bridgehead. The Hall will search its records, and the reply will return with the ferry rotation. Seven days if fast, ten if slow."
The sinking stone slipped beneath the water. One ring rippled across the still surface, then another, travelling farther than a stone's ripples had any right to travel—as though something on the other side had gently caught it.
Mick stared at the river, eyes wide. "Great-Uncle, that's... sent? Without even putting a stamp on it?"
"There was a stamp." Old Vane pointed to the ring that had yet to fade. "See that? The recipient signed for it in person."
"What if..." Old Rufus wrung his hands beside the river. "What if the news they find isn't good?"
"Then we bring it back exactly as it is," old Vane said. "The first rule of interworld correspondence: we alter not one word for either side."
While they waited for the reply, the agency carried on as usual.
Thomas's baby's christening fell in that interval.
It was held at the little parish chapel where Thomas and Cheryl had married. Every seat was filled. Mrs. Porter wore her best wool dress; Mick's mother had come with Mick; Half-Ladle had borrowed the chapel kitchen a day in advance, declaring that christening refreshments could not be treated carelessly. Auntie Golden Throat came too and sat in the back row, saying she wanted to see the smallest opening performance the human world had ever staged.
Xiaoman wore a snow-white christening gown and slept soundly from beginning to end.
Thomas stood before the altar in a freshly pressed suit, but tied his bow tie crooked three times in succession.
Watching him wrestle with it, Sharlo suddenly remembered the wedding two years before—the same chapel, the same bow tie. That day, Director Grey had walked up without expression and put it right in two movements, then brushed Thomas's shoulder with a look of distaste for good measure.
Thomas must have remembered too. His hands stilled at his bow tie, and he looked toward the first seat in the side aisle. It was empty. Not because no one had taken it, but because Cheryl had deliberately kept it so. A small white flower lay upon the seat.
"Whoever tied it for you can see it crooked," Thomas said at last, giving up and leaving the bow tie slightly askew before taking his place. No one in the chapel laughed. Some crooked things carried more dignity than straight ones.
When the pastor had finished the prayer, he came to the question: "Who stands surety for this child?"
Sharlo stepped forward.
"I do."
The two words had barely landed when Xiaoman opened her eyes in his arms. She did not cry. She simply stared, dark-eyed, at the man who had answered for her. After a long moment, her toothless mouth split into a grin.
The whole chapel laughed. The pastor said a child who woke laughing at her christening was a child who understood.
In the parish register, Sharlo signed his full name in the godfather's column. When he had finished, he looked at the name "Sharlo Vane" beside the name "Xiaoman" and suddenly felt the weight of that sheet. The black notebook recorded what must never be forgotten. The parish register recorded what had only just begun. He could now sign his name to the accounts on both sides.
At the refreshments after the ceremony, Mick drew out his whistle and played Xiaoman a softened version of three short blasts, one of his own invention. He called it the "baby version: alive, but quietly." Xiaoman flailed with delight, seized the whistle when he brought it too close, and refused to let go. Mick grimaced in pain but dared not snatch it back.
Viola sat by the window, watching the bustle in white. Cheryl carried the baby over and naturally deposited her in Viola's arms. "Sister Viola should hold her too. Let her take on some of your steadiness—you couldn't find anyone steadier in the whole city."
Viola received her. Her hold was textbook-perfect, as though copied from a drill manual, and she lowered her gaze to the little face in her arms. Xiaoman stared back. Large eyes met small; neither spoke, neither blinked. After a long contest, Xiaoman yielded first. She yawned, smacked her lips, and went back to sleep.
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"For the record," Viola said softly, "this child's speed in falling asleep ranks first in the city. This agent—" She paused. "Concedes defeat, and is profoundly envious."
She gently returned the baby, then said abruptly to Cheryl, "I have a presumptuous request."
"Tell me, Sister."
"When she is older and can understand stories," Viola said, "take her to visit the families whose names were acknowledged by Bridgehead Hall's storytelling circle. The sugar cakes need a low flame and three turnings. Tell her where that craft came from."
"I am afraid that by then, not everyone who should tell it will be present." Her voice was very level. "So I entrust it to you now."
Cheryl did not know what Bridgehead Hall was, or what story lay behind the sugar cakes. But she understood the weight of the word "entrust." She nodded solemnly. "Noted. Not one word will be lost."
The reply arrived on the ninth day.
At dawn, a small oilcloth parcel lay squarely upon the threshold beneath the blue-green glass lantern. No one had seen when it came in the night, or how. Inside were two things: a one-page reply from Bridgehead Hall, and another, older letter, sealed with wax.
Mick ran all the way to fetch Old Rufus. The old man's hands shook too hard to break the seal, so Sharlo opened the reply and read it aloud, one word at a time.
The round, methodical handwriting was the Old Boatman's:
"Bridgehead Hall replies: records searched. Visitor [name], crossed the bridge sixteen times over a year and a half. Reason entered each time: 'to see the old man.' Two months ago, this visitor's backward journey reached the year of her next birth. Her boat came ashore and she was settled. All procedures complete. Her passing was peaceful."
"Further: before coming ashore, upon returning from her final crossing, this visitor left one letter at the Hall with the instruction: 'If he sends someone to ask after me, give him this. If he does not ask, do not hurry him.' The original is enclosed."
A tiny fingerprint had been pressed into the wax seal of the older letter.
Sharlo placed it in the old man's hands. Old Rufus held it for a long time before opening it himself. There was only one sheet. The handwriting was that of a woman who had received little schooling: strokes crooked and wavering, but every one pressed down with all the strength she had.
"Old man. I have arrived. I am well."
"The last time I visited, I scrubbed the stove and sewed the buttons tight on your winter coat. You didn't see that it was goodbye. I knew you wouldn't—you have been blind at heart since you were young."
"I won't come at midmonth anymore. I haven't forgotten you; I have reached my stop, and those are the rules. Cook for yourself. Don't be lazy. Don't eat cold sailcloth with your liquor at every meal."
"When your day comes, don't come early. Live all your days, and live them well. You are not allowed to leave even one unfinished. When the time comes, I'll be waiting on the bank. You'll know me. I'll be wearing blue."
The old man read the letter three times. After the third, he folded the sheet neatly and tucked it into the innermost pocket against his chest. Then the sail-mender in his sixties sat in the agency's visitor's chair and wept aloud like a child.
Halfway through his tears, Viola rose and refilled his cup with hot tea. As she set it down, her eyes lingered upon the letter—upon the line, "When the time comes, I'll be waiting on the bank. You'll know me. I'll be wearing blue."
When the old man had steadied himself, she spoke. Her tone was tentative, something seldom heard from her. "Old Rufus. I have a request. This letter—would you permit the agency to copy it for the files of the Register of Homecomings?"
"What would you copy it for?" The old man did not understand. "My old woman's writing isn't fit to show anyone."
"This agent has no concern with whether her hand is fit to show," Viola said. "This agent is concerned with its contents. This letter contains three things that everyone learning how to say goodbye ought to read once: how to account for the days, how not to hurry someone, and how to arrange the next meeting."
"Your wife had only a few years of schooling," she said, "but of every file this agent has handled, this letter writes the word 'goodbye' most truly."
The old man stared for a long while, then unfolded the letter once more. He looked at the crooked writing as if seeing it clearly for the first time.
"Copy it," he said at last, his voice hoarse. "If she knew her letter had gone into an official archive, she'd be so pleased—" He broke off and wiped his face again. "Copy it. Let her have her moment of honour too."
Viola copied it out herself that night. When she finished, she appended a line to the file:
"Original retained by Mr. Rufus. Copy archived here. Ruling: model of a farewell. For study."
Sharlo later discovered that she had tucked the copy into the penultimate page of her own notebook—beside the final line that still remained blank.
When his weeping was done, the old man wiped his face clean, stood, and bowed deeply to everyone in the room.
"She didn't forget me." His smile lit every wrinkle in his face. "She reached her stop. She'll be wearing blue."
"Tell me what I owe you."
"Not a penny," old Vane said. "Those are the rules."
"Money cannot be taken for interworld correspondence," he explained with great seriousness. "Once money changes hands, someone will ask whether paying more lets him jump the queue, or whether paying more lets him send a few more words. On that side, those who have waited three hundred years and those who have waited three days are treated alike. The counter on this side must be worthy of the rules over there."
"That won't do," Old Rufus insisted. "I can't take something this great for nothing."
Half-Ladle found the solution in the end. The old man was a sail-mender, and the clothesline frame in the agency courtyard had been falling apart for years. He returned the next day with his tools and worked from morning to night, leaving it stout enough to hang a mainsail. From then on, the street gained another regular who was forever dropping by to "check the ropes."
Old Rufus's mouth was the most reliable broadcaster in East Dock Lane.
Within three days, the news that "the corner of Tailor Street can send letters over there" had travelled down the clotheslines through half the city. A quiet queue formed before old Vane's little desk—all people who clutched their hats and paced half the street outside before daring to enter.
One sailor's mother wanted to ask the son who had drowned in the North Sea thirty years before a single question: "Just ask whether he was cold when he went." When old Vane had registered it, he said softly, "Madam, Bridgehead Hall will investigate this question with the utmost care. But I have travelled that river myself, so let me tell you one thing in advance: along that waterway, not one passenger travels alone. Every one of them has company." Clutching her registration receipt, the old woman thanked him over and over as she left, her back a little straighter than before.
A middle-aged silk merchant hemmed and hawed before giving the reason for his request as "settling a debt." In his youth, he had owed an old customer thirty silver candles; before he could repay them, the man died. "He can't spend it over there... but it has weighed on my heart for twenty years." Old Vane's ruling was brisk. "Donate the money in his name to the South-City Foundling Home. Hang the receipt in your shop. We will send the letter as promised—write: the account is clear; the interest has gone to the children." The merchant left with steps so light that he might have unloaded an entire ship.
There was also a little girl with pigtails, stretching on tiptoe to reach the edge of the desk. She wanted to send news to the grandmother who had died the year before: "The cat had kittens! Four! Spotted ones!" Old Vane registered it with complete solemnity: reason, good news; addendum, four, spotted. When he had finished, he took a sweet from the drawer and gave it to her. "The errand fee is paid by this office."
Viola watched the stream of cases over those few days. That evening, she offered Sharlo her summary: "The classification is now clear. This agency is handling the oldest sort of case in the world—"
"Cases of words left unsaid," she said. "Observed closure rate: very high."
Tide-Lass's letter arrived during those days as well. It came not by sunken lamp, but by the proper sea route, with mail forwarded through Gern Harbour.
The characters on the envelope were written stroke by stroke and so large they nearly escaped the lines: "Daydream Detective Agency, Tailor Street, Kandelburg." The letter contained five lines in all:
"Good day, ladies and gentlemen. My name is Tide-Lass. Granny is teaching me to read. She says a letter-reader must first know how to write a letter. This is my first. It is not written well. The lighthouse is very bright. End."
Everyone in the agency passed it around and unanimously ruled it the finest letter the agency had ever received. Sharlo wrote the reply, adding Bridgehead Hall's message at the end: the letter-reader's seat remained open and waiting, without hurry. Old Vane added a line in smaller script beside it: "It is very well written. Your use of the word 'End' is especially good. All letters in the world should finish this way—when the words are finished, it is the end."
The evening after Old Rufus departed, Auntie Golden Throat came to say farewell. Her company had engagements waiting in the south. Before leaving, she set down two tickets.
"The day after tomorrow, my company passes the Evening Bell docks. We'll put up a stage for one night," the old troupe mistress said. "A Bond in a Box. An old play, newly mounted."
She looked at Sharlo, then Viola, without the slightest attempt at subtlety. "You owe her a play. 'Teach me how to watch theatre when the case is over'—that promise was made when the Dreamless Street case ended and has been owed to this day. This old woman has gone so far as to build the stage for you. If you default again, where is the theatrical profession to show its face?"
The two tickets lay side by side upon the table.
Viola picked them up and examined them, then slipped them between the pages of her notebook—beside the page bearing Article Twelve.
"The day after tomorrow," she said. "That item happens to be on this agent's list."
Auntie Golden Throat reached the door, then paused. She looked back at the brightly lit agency—the new ledger on the little desk, the blue-green glow beneath the lintel, the Night-Watch Rules upon the wall, and the lit east window upstairs.
"This old woman has sung plays all her life," she said suddenly. "Reunions upon the stage always come with gongs and drums. Never before have I seen one without a gong—"
"Just living their days, and reuniting as they go."
She dusted off her coat and stepped through the door. "The day after tomorrow, this old woman will see that the company brings its true skill. An audience such as this cannot be fobbed off."
That night, Sharlo closed the day's accounts in his notebook.
He wrote of Old Rufus and "she'll be wearing blue." Of the thirty silver candles transferred to the Foundling Home. Of four spotted kittens. Of Tide-Lass's "End." Of the words "I do" at the christening, and Xiaoman opening her eyes when it was spoken.
At the end, he added a line:
"Daydream Detective Agency: four cases closed this week, several pending. Every cause of action can be reduced to one phrase—words left unsaid."
"Every means of closing them can also be reduced to one phrase—helping people finish speaking."
Upstairs, the lamp in the east room was still burning. Another day had passed from the countdown, passing like every other day: without hurry, without panic, everyone in the house keeping their own watch and lighting their own lamp.