From Grandma Su's recipe book, page four: "A table set for one is a quiet thing. A table set for the whole street is a promise."

It had been decided without her.

That was the first thing Wenxi learned about the banquet, and the only thing she could do about it was stand in the middle of Tang Rui's tea house with her arms held out and let herself be measured.

"Hold still," said Tang Rui, through a mouthful of pins.

"I am holding still."

"You are vibrating. Chin up. No, up. Like you are looking at something you like."

"I'm looking at the ceiling."

"Then like you like the ceiling."

The tea house sat at the foot of Liu Bridge, a tall narrow building with a carved balcony and a sign that had been repainted so many times its letters stood out like raised scars. Upstairs, under a window thrown wide to the canal, Tang Rui kept a small room that she called her office and everyone else called her dressing-up box. Silk scarves hung from the rafters. A rack of embroidered jackets crowded one wall. A battered sewing machine took up a whole table, and on every flat surface sat a teacup, abandoned halfway through.

Tang Rui herself was thirty-one, small and quick and sharp-chinned, with a fringe cut by her own hand and an air of permanent amused alertness, like a bird that had decided you were interesting. She had been the older girl behind the tea house counter when Wenxi was eleven, five years ahead and entirely unimpressed by the gap, and she had been Wenxi's closest friend ever since. She had been the one who walked her to the platform on the last night. And eight years later, when Wenxi's phone finally found a signal on the train, there had been exactly one message waiting from her: I'm making the green tea you like. Don't be a stranger.

Wenxi had cried for ten minutes in the toilets of the carriage when she read it.

Now Tang Rui took a pin from her mouth and slid it into the hem of a dress. It was a soft cream silk thing with tiny embroidered plum blossoms at the collar, and it had come out of a box labelled WENXI in Tang Rui's careless handwriting.

"I can't wear that," Wenxi said. "It's too nice."

"It's from my spring line. I've been saving it since I knew you were coming."

"You knew I was coming?"

"Everyone knew you were coming. Your grandmother told the fishmonger on Tuesday that her granddaughter would be back by the end of the week." Tang Rui looked up, her eyes bright and shrewd above the pins. "She didn't say why. She just said it, in that voice. You know the voice."

Wenxi did know the voice. It was the voice that said the roof was only a little drip.

"And I got a text from her," Tang Rui added casually, "in the middle of the night, a week ago. It said, MAKE HER SOMETHING PRETTY. That's all. Not even a full stop."

"Grandma doesn't text."

"She does now. Zhaoyu taught her. Everything is in capitals."

Wenxi laughed, and the sound surprised her. It came out whole and real and unforced, the first time in nine days, and Tang Rui's face softened.

"There she is," she said quietly. Then, in a sharper tone, because she was nothing if not practical: "Arms up, I need to pin the waist."

The banquet was held in the courtyard of the tea house on the longest evening of the spring, and it seemed to Wenxi that the entire town had come.

They had strung long tables end to end beneath the plane trees, covered them in red-checked cloths, and loaded them with every dish on Sixth Alley: steamed fish with ginger, braised pork in glossy brown sauce, bamboo shoots and tofu knots, soup dumplings sweating in their baskets, plate after plate of pickles and cold chicken and bright green vegetables. Paper streamers rippled from the eaves. A small band of elderly men with erhu and flute sat on a bench playing something cheerful and slightly flat. Children chased each other under the tables, shrieking, until someone's mother shouted and they scattered again like sparrows.

And on a banner over the main gate, in huge red characters, hung the message she had been dreading since she stepped off the train: WELCOME HOME, LITTLE XI.

"Oh, no," said Wenxi.

"Oh, yes," said Tang Rui, with great satisfaction, and pushed her through the gate.

The next hour was a blur of faces and hands and food. Everyone she had met that morning had come back, and brought cousins. She was passed from table to table like a dish. She was fed a dumpling by Auntie Zhou, a rice cake by Mr. Qian, and a mysterious pickled thing by one of the Wei sisters, who insisted it was good for the skin. She was told, in the course of ten minutes, that she was too thin, too pale, and not too thin at all, depending on whom she asked. Everybody wanted to know about the city. Everybody wanted to hear about the big cakes, the glittering ballrooms, the famous clients.

She had a script for this. She had spent nine days perfecting it. She said, "Oh, it's very busy," and "Oh, I've been so lucky," and "Oh, I just needed a rest." She laughed in all the right places. And every time somebody leaned in with that warm, interested glance and asked, "And what are you working on now?" she felt the question slide in beneath her ribs like a thin cold blade, and she smiled wider, and answered, "A few things. Nothing I can talk about yet!"

"Mysterious," said Auntie Zhou, with approval.

"A secret project," said Mr. Qian, delighted. "Good, good. Keep it close to the chest."

Wenxi took a long drink of rice wine and tried not to think about how easily they believed her.

"You're doing the thing," said Tang Rui in her ear, passing with a tray of tea.

"What thing?"

"The thing where your face is saying one sentence and your hands are saying another. You've been strangling that napkin for ten minutes."

Wenxi looked down. She had. It was a very small, very wrinkled napkin.

"I'm fine," she said.

"Mm," said Tang Rui, exactly like everyone else, and moved on.

Grandma Su had been given the seat of honour at the head of the long table, and she bore it with the serene dignity of a small general. She wore her good dark-blue jacket with the frog buttons, and her white hair had been pinned up by someone with more patience than the occasion required. She ate very little. She accepted compliments with a slight incline of the head. And all evening, whenever Wenxi glanced her way, she found those quiet eyes resting on her, not worried, not prying, only watching, the way one watches bread under a cloth.

"Do you like the dress?" Grandma asked, when Wenxi finally came to sit beside her for a minute.

"It's beautiful."

"Good. I told her to make it pretty." Grandma patted her hand. "You look like your mother did, the year she was married."

"Grandma."

"Eat something. You're all elbows."

Wenxi ate something. It was a dumpling, and it was perfect, and it was only after she had swallowed it that she noticed Grandma's gaze had drifted away from her and across the courtyard, settling on a far corner with the mild, innocent interest of a woman looking at nothing in particular.

It was while she was following that gaze that she saw him.

Chengyan stood at the far end of the courtyard, as far from the music as it was possible to get without being in the canal. He had on a clean dark shirt, ironed so sharply it looked as if it might snap, and his hands were in his pockets. His grandfather sat beside him on a folding chair with a cane across his knees, looking around with the benign vagueness of a man who has seen many banquets. Chengyan was looking at nothing. He was standing in the stiff, upright way of someone who had been persuaded to come and intended to leave at the first available moment.

Then, as if her attention had a weight, he turned his head.

Their eyes met across forty feet of courtyard, a long table of dumplings, a bobbing line of children.

Wenxi's stomach performed a small, unpleasant somersault. Chengyan's face did nothing at all. He gave the smallest possible nod, the kind one gives a person on a bus whom one vaguely knows, and looked away.

She turned on her heel and became extremely interested in a bowl of pickles.

For the next half hour they moved around the courtyard like two planets with the same orbit. When she went to the left of the tables, he went right. When she stopped by the band, he found a fascinating conversation with the man selling melon seeds. Once, when the crowd shifted and left them a mere six feet apart, she saw him raise his eyes from his plate, see her, and with immense dignity turn around and walk in the opposite direction. She was almost impressed.

"You two are ridiculous," said a voice at her elbow.

Lin Zhaoyu was twenty-four, long-legged and lazy, with a cowlick that no amount of water could subdue and a grin that he wore all the time like a favourite hat. He was Chengyan's cousin and apprentice and the most incurable gossip in Yunxi. He had appeared from nowhere with a plate heaped with spring rolls and was chewing one as he watched her.

"We're not doing anything," said Wenxi.

"That's what's ridiculous." He swallowed. "I've been keeping count. That's four laps of the courtyard. Mr. Qian thinks you're a pair of lost chess pieces. Auntie Zhou has a bet going with the Wei sisters. I'm told the odds are good."

"On what?"

"Oh, you know." He waved a spring roll. "Whether he talks to you before the dessert or after."

"There's no bet."

"There's a spreadsheet."

Wenxi stared at him. "There is not a spreadsheet."

"There is not a spreadsheet," Zhaoyu agreed cheerfully, "yet. But the fact that you believed me for a second says something about this street."

She was spared having to reply by a sudden swell of noise. A man in a good grey jacket had stepped onto the low wooden platform at the end of the courtyard, tapped the microphone twice, and smiled around at the crowd with the easy warmth of someone who had been born knowing how to do it.

"Good evening, Yunxi," said Shen Haoran.

He was thirty-five or so, tall and well-groomed, with a clever face and a voice as smooth as poured tea. He did not look like a developer. He looked like a very expensive schoolteacher. Wenxi had seen him twice that afternoon, strolling the canal path with a notebook, stopping to admire a doorway or a carved lintel and saying something polite to whoever passed. He seemed to like the town. That, she thought, was the dangerous part.

"Thank you for having me tonight," he said. "I know most of you have never seen my face, and some of you have been, forgive me, a little suspicious of it. I understand. A stranger arrives with a briefcase, and every old street in the world hears alarm bells." A ripple of laughter. "So let me say plainly why I'm here. My company has spent the last two years looking at towns like this one. Towns that are beautiful, and fragile, and tired. And what we found, over and over, is that people do not save a place by writing it letters. They save it by loving it, in public, loudly, where it counts."

"He talks well," muttered Zhaoyu, through a spring roll.

"This summer," said Shen, "in partnership with the Yunxi Old Street Committee, we are launching a campaign. We call it Couple of the Old Street."

A murmur ran through the crowd.

"Three rounds, over the course of the season. A spring market, a midsummer festival, and an autumn harvest finale. Couples from across the old town will present themselves, their work, and their stories to a panel of judges and to our visitors. And the couple who best embodies what makes Yunxi special will win a renovation grant of, forgive me, I'll say it plainly, five hundred thousand yuan, to be spent on restoring the home or business of their choice."

For a moment nobody breathed.

Then the courtyard exploded. A burst of exclamations, a clatter of chopsticks, a shout of "Five hundred thousand!" from the back. Auntie Zhou put both hands to her cheeks. One of the Wei sisters said, quite loudly, "We're not married!" and the other said, "We can be!"

Wenxi did not move. She stood very still among the shouting, and she did the sum.

Five hundred thousand. She had seen the county company's quote in the ledger, circled twice in red. She had seen the smaller figure on the scrap of plank. She did not need a calculator. She had been doing sums like this since she was twelve, balancing the cost of sugar against the price of a cake, and the figure came out clean and clear and impossible: it would be more than enough. It would put on the roof. It would replace the oven. It would take Grandma out of the ledger's red ink for years.

She looked up, because she could not help it.

Across the courtyard, in the angle of two tables, Chengyan had gone completely still. He was not looking at Shen. He was not looking at the crowd. He was looking at her.

It lasted perhaps two seconds. His face was unreadable, and she knew, with the strange certainty of long habit, that he had run the same sum down to the last digit and come to the same answer. His grandfather's knee. The workshop's sagging roof. The expansion he had been talking about since he was nineteen. He had a number of his own.

Then someone jostled a table, and the moment cracked, and he looked away.

"Well," said Zhaoyu, very softly, and for once without a smile. "That changes things."

Shen Haoran found her twenty minutes later, beside the dessert table, where she had retreated with a plate of osmanthus cake and the faint hope of being invisible.

"Ms. Su?"

She turned. Up close, he was even more polished, with a faint scent of cedar and cold air. His smile was warm and entirely professional.

"Mr. Shen."

"Please, Haoran. I'm sorry to catch you in the middle of your own party. I just wanted to say hello. Your grandmother's shop was the first place I visited when I arrived in Yunxi." He nodded at the cake. "I'd say that was an excellent decision, but I'm biased. It was the best thing I ate all week."

"Thank you," said Wenxi, and meant it, which annoyed her.

"I understand you've just come back from the city. Pastry design, wasn't it? Zhaoyu mentioned wedding cakes."

She felt the smile on her face tighten by a fraction. "I've been doing a little of everything," she said smoothly. "Taking some time to reset."

"A wise thing to do." He did not push. He simply let the silence sit there for a moment, courteous and unhurried, and then added, "I hope you and your grandmother will think about entering. Su Ji is exactly the sort of institution we hoped to find. A family, a craft, seventy years of history. The judges will love it."

"We'll certainly think about it," said Wenxi, with the full dimple.

"Good." He gave a small bow. "Do take a look at the rules. I think you'll find them quite straightforward." And with another smile he was gone, absorbed back into the crowd, leaving her with a plate of cake and a faint, creeping chill.

She found the rules on the notice board by the gate, printed on a sheet of heavy cream paper and pinned beneath a small brass lamp. She read them twice.

Entry is open to couples resident in or connected to the old town of Yunxi.

Each entry must consist of two people in a committed romantic partnership.

Couples will be judged on authenticity, chemistry, and the strength of their connection to the community.

The word couple appeared eleven times. She counted.

Wenxi stood in front of the notice for a long time, the paper cool under her fingertips, and listened to the music and laughter spilling out of the courtyard behind her. Somewhere in the crowd, she knew, a man in a clean dark shirt was standing beside his grandfather's chair, reading the same sheet of paper and arriving at the same conclusion.

A couple. A real, committed, believable couple.

She began, quietly and without any real sense of how it was happening, to laugh. It was not a happy laugh. It was the laugh of someone who has just looked up and noticed how very high the ladder goes.

"Oh, no," said Wenxi, to the cream-coloured paper, to the plane trees, to the rippling streamers and the noise of the party and the whole warm, bright, impossible evening. "Oh, no. No, no, no."

Behind her, in the dark beyond the gate, someone cleared his throat. It was a low, rough sound, and she did not need to turn around to know who it was.