My throat closed.

I had never told him.

The face outside smiled.

“He listened,” Rose said. “You should listen too.”

Vanessa took the radio.

“Grandma left instructions.”

Of course she had.

My grandmother had controlled this house, our childhood, even the dresses we wore to her funeral. She had left the villa to me and her jewelry to Vanessa.

My sister had cried over the difference.

“What instructions?”

“In the cupboard behind you.”

I turned.

A shallow cabinet stood above the ledge.

Inside lay a leather notebook and a small photograph. Above them, a narrow ladder led to a hatch in the ceiling.

Grandma, young and unsmiling, beside a man I did not recognize.

On the back, in her familiar handwriting:

Arthur, the morning after he returned.

My grandfather’s name was William.

I opened the notebook.

Dates. Names. Tides.

A line had been underlined so heavily the paper had torn.

One return requires one surrender.

Below it:

The surrendered must be willingly abandoned by someone they trust.

My knees weakened.

I read on.

The door may be unfastened from either side. Nothing crosses until the keeper invites it.

A final note filled the bottom margin.

The house belongs to the keeper. Everything bought by the first bargain remains part of the debt. The keeper may repay the debt by surrendering all that the bargain purchased.

I looked around the chamber.

Rose stopped smiling.

“You weren’t supposed to read that.”

“What first bargain?”

Vanessa answered too quickly.

“That doesn’t matter.”

“It matters to me.”

A long pause.

Then my sister said, “Grandma brought Arthur back. She never told William.”

“Who did she surrender?”

“Our mother.”

The chamber seemed to tilt.

My mother had disappeared during a storm when I was seven. Grandma told us she had walked into the sea because she could no longer bear being a mother.

For thirty years, I had carried that sentence inside me.

Every time Rose cried, every time motherhood exhausted me, I heard it.

I had wondered whether abandonment lived in our blood.

“She didn’t leave us?”

“No.”

I gripped the radio until its plastic creaked.

“You knew?”

“I found the notebook after the funeral.”

“Before Rose drowned?”

Vanessa said nothing.

Outside, my daughter’s face withdrew from the glass.

“Before Rose drowned?” I asked again.

“I thought it was a story.”

“What did you do?”

“I went down there. I said I wanted Mum back.”

My sister began crying.

“I didn’t understand what answering meant.”

Rose had trusted her aunt.

Rose had been left beside the pool.

Now Vanessa had helped Ethan leave me.

“Did you let her go into the water?”

“I only turned away.”

I could barely hear her.

“She called me. I kept looking at the house.”

For three years, Vanessa had held me while I cried.

She had helped choose the empty coffin.

She had told me accidents happened.

I lowered the radio.

There were things I might forgive someday.

I could not imagine the woman who would forgive this.

Ethan came back.

“Vanessa said we could fix it.”

“By giving them me?”

“I thought you would be gone before you knew.”

The honesty nearly made me drop the radio.

“You thought that was kinder?”

“I wanted our daughter back.”

“So did I.”

I looked at the little face returning to the glass.

“Every morning. Every night. You didn’t have to teach me how much to miss her.”

“Claire, I can’t undo it.”

“No. You can’t.”

Rose began knocking again.

This time, she used the rhythm she tapped on our bedroom door when she had a nightmare.

My body recognized it before my mind did.

When she was little, Rose asked whether I would ever leave her. I promised she would never have to earn a place beside me.

I stood.

“Mummy,” she whispered. “It’s cold now.”

The porthole misted beneath her breath.

How could someone underwater breathe on glass?

I wanted that small impossible detail to be proof.

I wanted proof so badly that I almost turned the wheel.

Instead, I asked, “What happened to your rabbit?”

She looked confused.

“The gray one. What did you ask me to mend?”

“His ear.”

“No.”

Her expression tightened.

“His foot.”

That was right.

I had deliberately offered the wrong answer.

“I asked you to leave the stitches showing,” she continued. “So he could remember you helped.”

I slid down against the door.

Something outside could know a secret.

Something outside could borrow a face.

But perhaps my daughter was standing there.

Perhaps refusing her would mean losing her twice.

“Mummy, please.”

I reached toward the glass.

She matched my fingers.

“I’m sorry I wasn’t there,” I said.

“You can be here now.”

The wheel trembled beside my shoulder.

I looked back at the notebook.