Xiulan did not sleep that night.
After burying the red packet beneath the moss-covered stone, she returned home and lay down beside Nian'an. The boy's breathing was soft and even, his small hand curled against her arm. Chen Wangtian sat slumped by the door, his pipe cold in his lap. The house was quiet. The village was quiet. Even the old locust tree seemed to hold its breath.
But Xiulan's mind would not quiet.
She raised her left hand and studied it in the sliver of moonlight that slipped through the window paper. Ten nails, each a different color. The waxy yellow on her pinky—Old Wu's nail, heavy with fifty years of borrowed memories. The pearl-white on her index finger—the first nail the Nail Borrower had returned, clean as a blank page. The other eight were still growing, pale gray like the sky before dawn.
She pressed the waxy yellow nail against her thumb and felt it pulse. Not her own heartbeat. Something older. Slower. The thread that connected her to the locust tree, to the Nail Borrower, to the madwoman who had waited fifty years to deliver a red packet and then dissolve into moonlight.
Thank you, the madwoman had said. The debt is paid.
But whose debt? And to whom?
Xiulan closed her eyes and let the memories wash over her. They came in fragments, like shards of a broken mirror. A teenage boy with earnest eyes, pulling nails from his own fingers one by one. A little girl with black eyes and a voice that was not her own. Ninety-eight children's nails, each one plucked from ashes and strung onto a black cord. Fifty years of incense smoke and lamp oil and the word Perished written over and over in a yellow ledger.
She felt the weight of every single nail. Not in her fingers—deeper. In her chest. In her bones. In the place where her grandmother had said the soul resides.
Nails connect to the soul, her grandmother had written. The soul is tethered to the ten fingers. When the nail falls, the bolt falls. When the bolt falls, the soul leaks.
Xiulan had given ten nails willingly. She had felt her soul leak from her fingertips, slow and steady, like water seeping from a cracked vessel. But then something had changed. The Nail Borrower had returned one nail—the pearl-white one on her index finger. And when that nail touched her skin, the leakage had stopped. Not completely. But enough. Enough to let her breathe. Enough to let her grow new nails in the empty spaces.
She was no longer just a debtor. She was something else. Something even the Nail Borrower did not fully understand.
A living woman whose nails would always grow back.
But what did that mean? Was she still human? Was she becoming something else—something like the madwoman, half in this world and half in the roots of an ancient tree? Would her nails eventually stop growing, leaving her with ten bare fingers and a soul that had leaked away entirely?
She did not know. And that uncertainty was heavier than any nail.
The next morning, she rose before dawn and walked to the old locust tree.
The mist had not yet lifted. The tree's canopy was a dark cloud against the pale sky, its branches etched like veins. The moss-covered stone was damp with dew. Beside it, the patch of fresh soil where she had buried the red packet was undisturbed. No red thread emerged from the earth. No voice whispered from the fissure in the trunk. The tree was just a tree.
But Xiulan knew better.
She sat on the stone and closed her eyes. She did not pray. She did not speak. She simply let herself feel the weight of all the nails she carried—Old Wu's memories, the madwoman's vigil, the ninety-eight children whose names were recorded in that yellow ledger. She let them press down on her, heavy and cold.
And then, slowly, she let herself feel something else.
The warmth of Nian'an's small hand in hers. The rough comfort of Chen Wangtian's palm. The memory of her grandmother's voice, reciting the old rules about nails and souls and the things that should never be borrowed.
What is borrowed must be returned, her grandmother had said. But what is given willingly can never be stolen.
Xiulan opened her eyes. The mist was lifting. The first rays of sunlight filtered through the canopy, dappling the ground with gold. And there, on the moss-covered stone beside her, sat the old woman in red.
She looked different. Her white hair was still smooth, pinned with a silver clasp. Her face was still lined, layer upon layer like the bark of the locust tree. But her eyes—those wholly black eyes—had changed. The darkness in them had receded, just slightly, revealing flecks of gray beneath. Like storm clouds thinning after rain.
"You came," Xiulan said.
"I have been here all night," the old woman replied. Her voice was a child's, but her tone was ancient. "Watching you sleep. Feeling the weight you carry."
Xiulan looked down at her own hands. "Is that what this is? Weight?"
The old woman was silent for a moment. Then she reached out and took Xiulan's left hand in hers. Her fingers were cool, like tree bark in shade. Her nails—five intact, gleaming with a faint pearlescent sheen—pressed gently against Xiulan's patchwork ones.
"It is not weight," the old woman said. "It is roots. The nails you carry are not just memories. They are connections. Threads that bind you to every child who was ever borrowed, every parent who ever wept, every handler who ever believed that collecting enough nails would set them free. You are not carrying a burden. You are growing a root system."
Xiulan stared at her. "I don't understand."
"You will." The old woman released her hand and looked up at the canopy. "The madwoman gave you her brother's nails. You buried them beneath this stone. Those nails were given willingly—first by a brother to his sister, then by that sister to you. They were never borrowed. They were never stolen. They were given. And what is given willingly can take root."
Xiulan thought of the red packet, buried in the dark earth. She thought of the ten nails inside it—nails that had been pulled from a teenage boy's fingers fifty years ago, carried by a madwoman for half a century, and finally laid to rest beneath the tree where it all began.
"They are growing," the old woman said. "Not into a tree. Not into another Nail Borrower. Into something new. Something that has never existed before."
"What?"
The old woman turned to look at her. Those black-and-gray eyes held something Xiulan had never seen in them before. Not weariness. Not curiosity. Something softer. Something almost like hope.
"A way out," she said. "For both of us."
Xiulan felt the waxy yellow nail on her pinky grow warm. The pearl-white nail on her index finger tingled. The eight gray nails on her other fingers seemed to hum with a low, quiet energy.
"You still owe me nine nails," the old woman continued. "I will come for them, one by one. But I will follow your rules. Every time I take one, you will grow one. New nail for old nail. What grows back is yours. And when all ten of your nails have grown back whole—"
"Our debt is settled," Xiulan finished.
"Yes." The old woman smiled, and for the first time, the smile reached her eyes. "And when that day comes, I will no longer need to borrow. I will have learned to grow my own. Because of you. Because of the roots you are growing. Because of what you chose to give, rather than what was taken from you."
Xiulan sat in silence, feeling the weight—no, the roots—settle deeper into her bones. She did not fully understand what she was becoming. She did not know if she would still be human when all ten nails had grown back. She did not know if the old woman would keep her promise, or if the cycle of borrowing would simply begin again in another village, with another child, under another locust tree.
But she knew one thing: she had chosen this. Not out of fear. Not out of desperation. Out of something else. Something that felt, against all reason, like hope.
"Nine nails," she said. "Then we are done."
"Then we are done," the old woman echoed.
She rose from the stone and stepped back into the fissure of the locust tree. The bark closed around her like water, and she was gone. The tree was just a tree again.
But Xiulan could still feel her. A faint pulse through the waxy yellow nail. A thread that would not break until the debt was paid.
She stood, brushed the moss from her skirt, and walked back toward the village. The morning sun was warm on her face. Nian'an would be waking soon. Chen Wangtian would be lighting the stove. There was porridge to make, chores to do, a life to live.
And beneath it all, deep in her bones, roots were growing.