Chapter 1: The Rain That Brought Her

The rain came down like the sky had split open.

Xu Ming looked up from his mortar and pestle, the rhythm of grinding ginseng interrupted by the sudden roar against the tile roof. Water sluiced down the windows of the old pharmacy, turning the afternoon into dusk. He wiped his hands on his apron and went to flip the sign from OPEN to CLOSED.

No one would come in this weather. The last customer had left an hour ago, clutching a paper-wrapped bundle of astragalus root for her mother's weak lungs.

The bell above the door chimed.

Xu Ming froze, hand still on the sign.

She stood in the doorway, water streaming from the hem of her white dress, from the tips of her long black hair. The rain had soaked through everything — the silk clung to her like a second skin, revealing the sharp line of her collarbones, the curve of her waist. She didn't seem to notice. Or care.

She stepped inside, and the pharmacy felt smaller.

"I need herbs," she said.

Her voice was low, smooth. The kind of voice that belonged in a tea house at midnight, not a traditional medicine shop on a rainy Tuesday afternoon.

Xu Ming found his voice. "We're about to close."

"Then open again."

She walked past him, leaving wet footprints on the wooden floor. Her bare feet made no sound. He noticed she wasn't wearing shoes — had she walked through the storm like that? The rain had washed away any scent of perfume, but something else lingered. Jasmine. Wet earth. Something older.

She stopped at the counter and turned to face him.

Xu Ming was not a man given to poetry. He was thirty-two years old, had spent fifteen years learning the properties of herbs and the pulse points of the human body, and his idea of a good evening was a pot of oolong tea and a medical text from the Ming dynasty. He had never believed in love at first sight.

But standing in the dim light of his shop, with rain still dripping from her chin, she was the most beautiful thing he had ever seen.

"What do you need?" he asked, surprising himself with how steady his voice was.

"Century ginseng root."

The words hung in the air.

Xu Ming blinked. "I'm sorry?"

"Century ginseng root. Panax ginseng that has grown for one hundred years. Dried and prepared according to the methods of the Song dynasty."

He almost laughed. "That doesn't exist."

"It does."

"Miss, century ginseng hasn't been available in the legitimate market for eight hundred years. The last confirmed harvest was — "

"I know when it was."

She held his gaze. Her eyes were strange — pale gold in the center, darkening to brown at the edges. Like amber. Like something that had been watching the world for a very long time.

"I have one," Xu Ming said.

The words came out before he could stop them.

He didn't know why he said it. The ginseng root wasn't for sale. It was locked in the steel cabinet behind the counter, wrapped in silk and stored in a wooden box lined with lead. It had been in his family for four generations. His great-grandfather had bought it from a monk who claimed to have found it in the mountains of Changbai, growing in the shadow of a waterfall that only appeared during the fifth moon.

Xu Ming had always thought it was a family legend. A story to tell at New Year dinners.

But the root was real. He'd held it once, when he was eighteen and his father had shown him the family's greatest treasure. It looked like a man — arms, legs, a gnarled face that seemed to shift in the candlelight.

"What would you offer for it?" he asked.

The woman smiled. It was a small thing, barely a curve of her lips, but it changed her face entirely. She looked younger. Hungrier.

"How much do you want?"

"Money doesn't matter."

"What matters, then?"

He didn't know. He only knew that he couldn't let her leave. That if she walked out that door, the rain would swallow her, and he would spend the rest of his life wondering if she had been real.

"Tell me why you need it," he said.

She tilted her head. Water dripped from her hair onto the counter.

"I'm dying," she said.

Xu Ming's medical training kicked in before his heart could react. He scanned her — pale skin, dark circles under her eyes, the way her fingers trembled slightly as she gripped the edge of the counter. She was thin. Too thin. The dress hung loose on her frame.

"What's your diagnosis?"

"Does it matter?"

"I'm a pharmacist. I need to know what I'm treating."

"You're a pharmacist. You sell plants. You don't treat anything."

The words stung because they were true. He compounded prescriptions, weighed out herbs, gave advice on dosages. But he wasn't a doctor. He couldn't diagnose.

Still.

"Let me take your pulse."

She stared at him for a long moment. The rain hammered against the roof. Somewhere down the street, a car horn blared.

"Fine."

She held out her arm.

Xu Ming's fingers touched her wrist. Her skin was cold — not the cold of rain, but the cold of winter. Of something that had never been warm. He pressed down, searching for her pulse.

It took him thirty seconds to find it.

One beat. Then nothing. Then another beat, thirty seconds later.

He looked up at her.

"What are you?"

"Give me the root," she said, "and I'll tell you."

Xu Ming should have refused. Should have called the police, or a hospital, or an exorcist. His hand was still on her wrist, feeling that impossible heartbeat, and every rational part of his brain was screaming at him to let go.

But her eyes were amber in the dim light, and her skin was cold, and she smelled like jasmine and rain and something ancient.

He let go of her wrist.

Then he unlocked the steel cabinet.

The box was where it had always been — wrapped in faded red silk, tied with a cord of braided horsehair. He carried it to the counter and set it down between them.

"Open it," she said.

He untied the cord. Unfolded the silk.

The ginseng root lay in the box like a sleeping child.

It was larger than he remembered. Nearly two feet long, the body twisted and gnarled into the shape of a man. The face was clearer now — eyes closed, mouth slightly open, as if it was about to speak. The roots that should have been thin and fibrous were thick, almost muscular. Fingers. Toes.

Xu Ming had held this root once, fourteen years ago. It had felt like wood. Dry and dead.

Now it felt like something was breathing inside it.

The woman reached out and touched it.

"Beautiful," she whispered.

"Who are you?"

She looked up at him, and for a moment, her eyes flickered. The amber turned to gold, and the gold turned to something that wasn't human. Vertical pupils. A slit where a pupil should be.

"I am Bai Suyin," she said. "And I have been looking for this for three hundred years."

Xu Ming's hand moved to the box, to close it, to take it back.

But her hand was faster.

She grabbed his wrist. Her fingers were cold and strong, and he felt something pass between them — a jolt, like static electricity, but deeper. It went through his skin, his muscle, his bone, and settled somewhere in his chest.

"Don't be afraid," she said.

"I'm not afraid."

"Liar."

She smiled again, and this time it reached her eyes. The gold faded, and she looked human again. Beautiful. Dying.

"Take it," he said.

The words came out of him like they belonged to someone else.

"Take the ginseng. It's yours."

Bai Suyin's smile faded.

"Why?"

"Because you need it."

"That's not a reason."

"It's the only one I have."

She studied him for a long moment. The rain had slowed outside, settling into a steady rhythm. Water dripped from the eaves. The pharmacy smelled of wet wood and herbs and her.

"You don't know what I am," she said.

"No."

"You don't know what I'll become."

"No."

"Then why?"

Xu Ming thought about it. Really thought about it. He was a practical man. A careful man. He had never done anything reckless in his life.

But when he looked at her, he felt like he was standing on the edge of something vast. Something that had been waiting for him.

"Because I want to find out," he said.

Bai Suyin picked up the ginseng root. She held it like it was alive, like it might wake up and speak to her. She closed her eyes and pressed it against her chest.

When she opened them again, the gold was back. Brighter this time.

"You'll regret this," she said.

"Probably."

"I'm not a good person."

"Neither am I."

"You're the best person I've met in a hundred years."

She said it like it was a curse.

Then she turned and walked toward the door. Her bare feet made no sound on the wooden floor. The rain had stopped, and the sun was breaking through the clouds, casting long shadows across the street.

She paused at the threshold.

"My trial," she said, without turning around. "It's you."

"What?"

But she was already gone.

Xu Ming stood in the empty pharmacy, the steel cabinet open, the silk wrapper lying empty on the counter. The bell above the door was still. The rain had stopped completely.

He looked down at his wrist, where her fingers had touched him.

There was a mark there. White. Pale against his skin. It looked like a scale.

No.

It looked like a bite.