The morning I discovered that our new maid was wearing my missing daughter's necklace, I was holding a crystal glass so tightly that I nearly shattered it in my hand.

For twenty-two years, I had imagined thousands of ways my daughter might return home.

In some dreams, she appeared at the front gate, older but unmistakably herself, carrying a suitcase and wearing the same crooked smile she had possessed as a child. In others, she stood outside my bedroom door and whispered, "Mom, I'm home," as though she had merely been away at school.

Sometimes I imagined receiving a telephone call from a stranger who had found her. Sometimes I dreamed that a detective would knock on our door with a photograph and an apology for having taken so long.

But never, not once, had I imagined that my daughter might return wearing a faded black uniform, carrying a tray of breakfast dishes, and asking whether I wanted more coffee.

My name is Evelyn Harrington. I was sixty-three years old when the past walked into my dining room wearing the face of a young woman named Lily Carter.

At that time, my husband, Charles Harrington, and I had been married for thirty-eight years. We lived in a large estate outside Boston, a house that had once been filled with laughter, music, and the sound of our children running through the hallways.

Now, the house was quiet enough that I could hear the old clock in the library strike each hour.

Our son, Michael, lived in California with his wife and two children. He called every Sunday, usually while driving somewhere, and promised to visit whenever his schedule allowed. I had learned not to count the days until his arrival.

My daughter, Emily, had disappeared when she was six years old.

The official investigation had lasted almost eighteen months. The police had questioned everyone who had been near our summer property, examined records, searched wooded areas, and followed dozens of false leads.

Then the calls stopped.

The detectives retired or transferred.

The newspaper stories disappeared from the front pages.

Eventually, people stopped asking whether we had heard anything new.

They began asking how we were coping.

As though grief were a room we could eventually clean and leave behind.

I never learned how.

Emily's bedroom remained on the second floor, at the end of a corridor overlooking the garden. I had changed the sheets every month for years, even though no one slept there. I kept her picture books on the shelf, her small collection of seashells in a glass jar, and the stuffed rabbit she had named Mr. Buttons beside her pillow.

Charles thought the room was unhealthy.

He said we needed to accept reality.

I told him I had accepted the reality that Emily was missing. I had never accepted that she was gone forever.

Those were two different things.

He stopped arguing after a while.

Our marriage survived, but it changed. We became two people sharing a home and a tragedy, each believing the other had somehow failed to prevent it.

Charles worked longer hours.

I spent more time in the garden.

We rarely spoke about Emily unless a birthday, anniversary, or newspaper article forced the subject into our conversation.

There were things I had never told him, and things I suspected he had never told me.

But I had become too tired to ask.

Then Lily arrived.

She was twenty-four years old, with dark hair usually tied into a low knot, warm brown eyes, and a faint scar near her right eyebrow. She had applied for a position as a live-in housekeeper through an agency we had used for years.

Our former housekeeper, Margaret, had retired after fifteen years of service. She had recommended that we hire someone young who wanted stable work and was willing to learn.

Lily's references were excellent.

She had cared for an elderly couple in Connecticut, worked briefly at a small hotel, and helped support a younger brother who was still in school.

She arrived on a rainy Monday morning carrying one suitcase and a modest handbag.

When I first met her, she seemed nervous but polite.

"Mrs. Harrington," she said, extending her hand. "Thank you for giving me this opportunity."

"You may call me Evelyn when we're alone," I replied.

She smiled.

"Thank you, ma'am."

I showed her the kitchen, the laundry room, the staff quarters, and the garden entrance. She listened carefully and asked sensible questions. She was not particularly talkative, but I liked that about her. After years of listening to people tell me what I ought to feel, I appreciated someone who knew how to remain quiet.

For the first few days, Lily performed her duties without incident.

She woke early, prepared breakfast, cleaned the downstairs rooms, and helped our cook organize the pantry. She never complained, even when I asked her to repeat a task because I wanted it done differently.

There was something familiar about her, although I could not identify what it was.

Perhaps it was her expression when she concentrated.

Perhaps it was the way she tilted her head when someone spoke to her.

Once, while carrying a basket of folded towels upstairs, she stopped beside the framed photograph of Emily that stood on a narrow table near the staircase.

I noticed her looking at it.

"That's my daughter," I said.

Lily turned quickly.

"I'm sorry. I wasn't trying to pry."

"You haven't done anything wrong."

She looked at the photograph again.

"She's beautiful."

"She was six in that picture."

Lily's expression softened.

"What happened to her?"

The question was gentle, but it struck me harder than I expected.

"She disappeared."

Lily lowered her eyes.

"I'm sorry."

"Thank you."

I waited for her to ask something else, but she simply picked up the basket and continued upstairs.

That evening, I found myself thinking about her question.

Most people who learned about Emily avoided the subject. They glanced at the photograph, murmured something sympathetic, and changed the conversation as quickly as possible.

Lily had asked as though she genuinely wanted to understand.

I should have been more attentive to that feeling.

Three mornings later, I entered the dining room just as Lily was setting the table.

She wore the same black uniform, with a white blouse beneath it. Her hair was tied back, revealing a delicate silver chain around her neck.

At the end of the chain hung a small pendant.

A silver oval.

A pale blue stone.

A tiny crescent carved into the edge.

My hand went numb.

The crystal glass I was holding slipped against the table and struck the wood with a sharp sound.

Lily turned.

"Mrs. Harrington? Are you all right?"

I could not answer.

I stared at the pendant swinging against her blouse.

I knew every line of that necklace.

I had chosen it at a small jewelry shop in Boston when Emily was five. The jeweler had designed two matching pendants, one for my daughter and one for me. They were not particularly expensive, but they were unique.

On the back of each pendant, he had engraved five words.

No matter what, find home.

I had given Emily hers on her sixth birthday.

She had worn it everywhere.

Three weeks later, she disappeared during a family trip to our summer cottage on the Massachusetts coast.

The police searched the beach and surrounding roads. They found one of her shoes near the dunes, but the necklace was never recovered.

I had spent years wondering whether someone had taken it as a keepsake, sold it, or thrown it away.

Now it hung around the neck of a woman who had been working in my house for three days.

"Where did you get that necklace?" I whispered.

Lily looked down.

"This?"

"Yes. The pendant."

Her fingers closed around it instinctively.

"My mother gave it to me."

"Your mother?"

"Yes."

"What was her name?"

"Anne Carter."

I gripped the edge of the table.

I knew that name.

Anne Carter had worked as a temporary nurse at a private clinic in Boston during the months before Emily disappeared.

She had been one of several people questioned during the investigation because she had helped arrange a medical appointment for my daughter.

The police had eventually ruled her out.

At least, that was what Charles had told me.

"How long have you had that necklace?" I asked.

"Since I was little. My mother gave it to me when I turned seven."

"Did she tell you where she got it?"

Lily hesitated.

"She said it had belonged to my birth mother."

The room seemed to grow smaller.

"Your birth mother?"

Lily nodded.

"I was adopted."

I stared at her.

For twenty-two years, I had wondered whether my daughter had been alive somewhere, growing older without me, asking strangers where she belonged.

Now a young woman stood in front of me wearing Emily's necklace, saying that she had been adopted.