She found him through a single alumni record: University of Colorado, geological engineering, 2000. Denver. Perth. Then a message to a Jiaming Liu in New Zealand, sent in desperation, sent without hope.

I am looking for Liu Jiaming. I knew a Chen Wei once, a long time ago.

She sent her number. She waited three days. He called back on a Sunday morning, cautious, hesitant, his voice older than she expected, rougher, as if he had not used it for something important in a very long time.

"I am Liu Jiaming," he said. "I knew a Chen Wei once. A long time ago."

She told him she had found letters. She told him her mother had died. The line went quiet for so long she thought he had hung up. When he spoke again, his voice was different. Smaller.

He gave her an address on the North Island and said, "If you want to talk, you will have to come here. I cannot do this over the phone. I cannot do this without seeing her in you."

So she came.

Now she sits in a rental car outside a weathered house on a coastal hill, the ocean loud in her ears, the wind carrying salt and something else, something that smells like memory. The porch light is on. She touches the box through her bag, feeling the wood warm beneath her fingers, gets out, and walks to the door. She raises her hand to knock.

The door opens before she can touch it.

A man stands backlit by the warm light inside. His hair is mostly grey, but the brownish tint is still there, catching the light like copper wire. He looks like someone who has forgotten how to hope for surprises, who has trained himself not to expect anything good in the mail, in the doorway, in the world.

"Yes?"

"I am Chen Wei's daughter," Ziqi says. "My name is Ziqi. I found your letters."

He goes very still. His eyes search her face, moving from feature to feature, finding her mother's eyes in her own, her mother's cheekbones, her mother's mouth. He looks at her the way you look at a ghost you have been waiting for.

"Chen Wei," he says, and the name sounds like a prayer and a wound, like something holy and something broken.

A woman's voice calls from inside, warm, curious. "Jiaming? Who is it?"

"A colleague," he calls back, and his voice is steady only because he has made it steady. "An old colleague. Give me a moment."

He steps outside and closes the door. The wind from the ocean is cold, biting, and Ziqi realizes she is not wearing a coat, that she has not thought about practical things in days.

"Your mother died," he says. Not a question. A confirmation of something he has already accepted, already mourned in advance.

"Three months ago. Leukemia." The word feels small in her mouth, insufficient for what it describes.

He closes his eyes. When he opens them, they are wet, but he does not blink, does not look away. "I am sorry. I am so sorry. I would have come. If I had known. I would have crossed the world."

"I need to talk to you. But not here."

He nods. "There is a cafe in town. On the main street. Eight o'clock tomorrow. I will tell my wife I need to settle an old debt. She will understand. She knows there are parts of me she cannot reach."

The next morning, Ziqi sits at a corner table, watching the door, her hands wrapped around a cup of coffee she has not touched. Jiaming arrives at eight-fifteen, wet hair, a jacket and scarf, as if he has walked through rain to get here. He spots her and walks over with a hesitation that makes her chest ache, a hesitation that says he is not sure he is allowed to want this.

"I told my wife a close colleague died," he says as he sits down. "That her daughter has questions. She understands. She has always understood that there are rooms in me she cannot enter."

Ziqi takes the wooden box from her bag and places it on the table between them. The brass clasp catches the light.

"I think," she says, "that we should start with these."

Jiaming looks at the box. He touches the brass clasp with a finger that trembles. He opens it.