Ziqi spreads everything on the floor. The letters in chronological order, a path through time. The photographs. The notes she has taken, pages and pages of her own handwriting, trying to make sense of a story that refuses to make sense.

She picks up the candid photograph again. Wei and Meilin on a bench. Meilin is looking at the camera, smiling her camera smile. But Ziqi's mother is not looking at the camera. She is looking at Meilin. Her expression is tender. Vulnerable. The look of someone who loves without reservation, without the armor she wore everywhere else.

On the back:

With Meilin, autumn 1997.

Two years before everything changed.

Ziqi dials Meilin's number. Her finger hovers over the call button for a long moment before she presses it.

"I'm going to find him," she says. No greeting. No preamble. "Jiaming. I found the letters and I need to understand what happened. I need to understand her."

"Why?" Meilin says. "What good will it do? Your mother is gone. He's gone. Whatever they had is over. It ended a long time ago. You are digging up graves."

"But it's not over. She kept these letters for twenty-eight years. She hid them behind winter coats. She never spoke of him. And you." Ziqi stops. She can hear Meilin breathing on the other end, slow and controlled. "You were her closest friend when everything changed. You must have seen something. You must have known something you never told anyone."

"Your mother was very private. She didn't share her feelings. Not even with me. Especially not with me, at the end."

"Did she say why she broke up with him?"

"No. She never said why. She married your father three months later. She never spoke of Jiaming again."

"Meilin, did my mother ever talk to you about Lihua?"

A pause so long Ziqi thinks the line has gone dead. "I told you. I don't know anyone named Lihua."

"But at the tea shop, you knew my mother was suspicious of her."

"I don't remember what I said." Meilin's voice is flat, mechanical. "Your mother made her choices. She lived with them."

"Meilin, if you know something."

"Some things are better left buried, Ziqi. Your mother understood that. That's why she buried them. That's why she never dug them up. She knew that some truths are too heavy to carry. She knew that some doors, once opened, cannot be closed."

Click. Dial tone.

Ziqi sits with the phone in her hand. Meilin didn't sound guilty. She sounded tired. She sounded like a woman who has spent twenty-eight years carrying a weight she refuses to name, refuses to set down, refuses to acknowledge even to herself.

Ziqi opens her laptop. She books a flight she cannot afford. She packs the wooden box in her carry-on, wrapped in her mother's scarf, the one she wore to conferences, the one that smells like jasmine and authority.

At the airport, she stands in line for security. She does not fit into any category. She is something else. A woman traveling with a wooden box of letters and a mission she cannot explain, not to the security guard who asks what is in the box, not to the flight attendant who offers her a blanket, not to herself.

The flight is thirteen hours over the Pacific. She does not sleep. She thinks about her mother, who never crossed this ocean, who never left China, who built her whole world within the borders of a single city. She thinks about Jiaming, who did cross it, who left everything behind, who carried his love across the water like a message in a bottle.

The plane touches down. She retrieves her bag, feeling the weight of the box inside it, feeling its warmth against her side.

She walks through the exit and into the air, which smells different, feels different, thinner and sharper and somehow younger. She looks up at the sky. It is the same sky she has always lived under, but it looks different from this angle, from this side of the world, as if the stars have shifted while she was not looking.

She takes a breath. She adjusts her bag. She starts walking.