Chapter 1 — The Last Seed Keeper

The seed fit neatly in the palm of Khe Mien's hand, smaller than a grain of rice, dark brown with a few pale yellow streaks like ash that had not yet cooled completely. It was so light that she was afraid that just breathing hard would be enough to blow it away, but when Co Diem Ninh closed her thin fingers around her hand, maintaining that position, Khe Mien suddenly felt that the small object was as heavy as a stone.

"What do you think it is?" the old woman asked, her voice hoarse but still understanding every word.

"A seed." Khe Mien replied, a bit confused because the question seemed so obvious.

"Yes. But what do you think it is?" Co Diem Ninh repeated, clicking on the word "think" as if that was the important part of the question.

Khe Mien looked down at her palm, looking through the gap between the old woman's wrinkled fingers. At nine years old, she had learned enough to know that everything in the Seed Store was precious, treated as if it might shatter at any moment—but no one had ever asked her what she thought a seed was, in a way that made her feel like the right answer lay somewhere far from what she had been taught.

"I... don't know," she said honestly.

"Good," Co Diem Ninh nodded, looking more satisfied than she thought. "Only those who don't know can learn. Those who think they already know are closed to all lessons." She let go of Khe Mien's hand, letting the seed lie alone in her small palm under the pale yellow biological light of the Seed Warehouse. "This is a Bach Diep bean seed. This seed has survived the Great Change, through eighty years without land, without natural rain, only rooms like this one and hands like mine, my mother's hands before that, and before that. It is not a thing. It is a promise."

"What promise?"

"That today we keep it, tomorrow it will keep us." Co Diem Ninh reached out her hand, and instinctively, Khe Mien placed the seed back in her palm. "You will hear this phrase so many times in your life that one day you will find it boring. But if one day you find it truly boring, you must stop, get out of the Granary, stand under the Filter Roof and look up at the fake sky we call the sky, and ask yourself what makes a promise like that boring. Because people are only bored with what they think they have enough of. And the Green Dome, child, is never full."

That was the first morning that Vu Khe Mien entered the Warehouse as a disciple, no longer a curious child being led around like the previous times. Outside the heavy double-layered door — one layer of steel, the other layer of tempered glass to keep humidity and temperature stable inside — the morning bell of Green Dome is tolling, signaling the start of the first shift of the day in the terraced fields. Khe Mien could hear it echoing through the thick wall, a deep, familiar sound like the heartbeat of the entire community.

The Green Dome, where she was born and had never known any other place, was a giant transparent dome over a small valley, erected in the early years after the Great Cataclysm by the first survivors—engineers, agronomists, and a few who were simply lucky to be alive. Inside that double layer of Filter Roof, the air was purified from toxic dust and residual radiation, water was regenerated in a closed cycle, and soil - the most precious thing, more precious than air according to people - was cultivated, processed, and protected on terraced fields like giant steps climbing gradually from the bottom of the valley up close to the glass dome, where the filtered sunlight became soft and clear as if no Great Change had ever happened.

But the Great Change happened. That, every child in the Green Dome knows before he can read.

Khe Mien followed Co Diem Ninh down the aisle between the seed shelves, each shelf a row of small metal boxes neatly arranged, each labeled handwritten in special ink that would not fade over time: variety name, last harvest year, estimated germination rate, and sometimes a short note from the previous holder—“drought tolerant,” “needs hand pollination,” “only twenty-seven seeds left, be careful.” The air in the Grain Warehouse was several degrees cooler than the rest of the Green Dome, dry, and smelled something between old paper and unwatered soil, a smell that Khe Mien would later find herself missing whenever she was away from it.

"I've been doing this job for forty-two years," Co Diem Ninh said, without turning around, her hand gliding over the box labels as if greeting old acquaintances. "The man who taught me was an old man who had been an agricultural engineer before the Great Change, one of the few people alive long enough to remember what the world used to be like. He told me the exact words I just told you. And the man who taught him, if still alive, would have said the same thing to him, in some way, under some dome, before all these domes didn't even exist."

"So that saying existed before the Great Change?"

Co Diem Ninh stopped walking and turned back to look at Khe Mien with eyes sharper than she thought a seventy-year-old woman could have. "You asked that question faster than most of the children I've taught. I don't know for sure. Maybe yes, maybe no — the history before the Great Change we only have in fragments, like these seeds, some lines intact, some mostly gone, just a few isolated seeds left, not enough to know for sure what an entire field once looked like." She continued, her voice slowing as if she was considering each word. "That's also why the job of a seed keeper is more important than you think. We don't just keep trees. We keep what's left of memory."

The first class ended not with a long lecture, but with Co Diem Ninh handing Khe Mien a small notebook with a worn leather cover, inside were pure white pages with no words written on them.

"From today, every time you learn something here - no matter how small - you write it down here. Not to remember, because human memory will fade. But so that, if one day you are no longer here, the person who comes after you still has something to start with, instead of having to learn from scratch like I had to learn."

"Did you learn from zero?"

"Not quite. But close." There was a short silence, enough for Khe Mien to realize she had just touched on something she did not want to continue talking about. "Come on. I'll show you the entire Granary, shelf by shelf, and you'll remember every name, not because I'm forcing you to, but because at some point, you'll understand why each name is worth remembering."

That afternoon, when Khe Mien returned to the small apartment where she lived with her father in the honeycomb neighborhood surrounding the agricultural core of Green Dome, she brought with her a notebook and a strange feeling she didn't yet have a name for — not quite pride, not quite fear, but something in between, heavy and light at the same time, just like the Bach Diep bean seed in her palm this morning.

She opened the notebook on the dining table, picked up the pen her father left her for her birthday last year, and wrote the first line in clumsy childish handwriting:

*Today Ms. Diem Ninh said: each seed is a promise. Today we keep it, tomorrow it will keep us.*

She stopped writing, looked at that line for a long time, then wrote another, smaller line, as if she wanted only herself to know:

*I won't let it get boring.*

Outside the apartment windows, the afternoon light filtering through the Filter Roof dyed the neighborhood in a soft orange-yellow, an artificial light designed to simulate a real sunset, though no one in the Green Dome, not even the oldest, remembered what a real sunset looked like. In the distance, through the curved glass of the dome, if one looked long enough and focused enough, one could see a pale gray streak on the horizon—where Filter Roof ended and Ash Field began, though at this distance it was just a faint, harmless outline, no more than a scribble on the edge of a painting.

Khe Mien has never been there. She had never even stood close enough to the edge of the Filter Roof to see clearly what it was. But that night, when her father — Vu Dinh Khoat, who returned home late with the typical smell of engine oil and the humidity of the Respiratory Station lingering on his shirt — asked her how her first day at the Grain Warehouse was, she recounted every detail so attentively that he had to laugh, pat her head and say that perhaps Co Diem Ninh had found the right person.

"She told me to keep the seed, then the seed will keep me," Khe Mien said, her voice still excited. "Do you think that's true?"

Vu Dinh Khoat was silent for a moment, his eyes slightly softening in the way that Khe Mien was familiar with whenever something touched the memory of her mother - even though she was too young to fully understand the meaning of that silence.

"I think," he said at last, his voice deeper than usual, "that it's the truest thing I've ever heard in all my life under this dome. And I hope you'll always remember it, even when everything else has changed."

That night, before going to sleep, Khe Mien opened the notebook again, looked at the two lines she had written, then closed it and put it under her pillow - a habit that she would keep for many years to come, through each new notebook replacing the old one that was full of pages, like a thin thread connecting the nine-year-old child tonight with the woman she would become, not knowing that the small promise she wrote tonight would echo far, far, across lands that At this moment, she didn't even dare to imagine it.