Chapter 1

The red velvet ring box was still open in my hand when my six-year-old daughter screamed.
"DADDY! MOMMY IS DOWN THERE!"
For one terrible second, I couldn't move.
I was kneeling beside our swimming pool, holding a diamond ring toward Vanessa, the woman I had planned to marry.
The afternoon sunlight reflected off the water.
Vanessa had one hand pressed against her mouth, her eyes filling with happy tears.
Everything had been perfect.
Until Lily started screaming.
My daughter ran across the white stone patio, her pink floral dress flying around her knees.
Her curly pigtails bounced beneath two enormous pink bows.
"Daddy! Daddy!"
She pushed herself between Vanessa and me.
Then she pointed toward the deep end of the swimming pool.
"Mommy is down there!"
I nearly dropped the ring box.
"Lily?"
Her face was twisted with fear.
She wasn't pretending.
She wasn't smiling.
She was shaking so badly that I could hear her teeth chattering.
"Mommy!" she screamed again. "I saw Mommy!"
I snapped the ring box shut.
My heart began pounding.
"Lily, sweetheart, look at me."
But she wouldn't.
She kept staring at the water.
And suddenly, I felt something I hadn't felt in fourteen months.
The terrible, impossible hope that my wife might still be alive.
My wife, Elena, had been declared dead fourteen months earlier.
I had watched them lower her coffin.
I had stood beside her grave while Lily cried against my chest.
I had spent hundreds of nights sleeping on the floor beside our daughter's bed because she couldn't bear to be alone.
And now my little girl was pointing at our swimming pool.
Screaming that her mother was underneath it.
I caught Lily by the shoulders.
"What did you say?"
She looked up at me.
Tears streamed down her cheeks.
"I saw Mommy!"
"Where?"
"Down there!"
Her little finger pointed toward the deepest part of the pool.
"She was looking at me!"
I turned.
The turquoise water shimmered beneath the bright afternoon sun.
For a moment, I saw nothing.
Only the white pool tiles.
The gentle movement of the water.
And the circular metal maintenance hatch installed at the bottom years earlier.
Then something moved.
It wasn't a leaf.
It wasn't a shadow.
It was something dark, passing behind the circular metal opening.
My breath caught.
I stood so quickly that my knees nearly buckled.
"Marcus?"
Vanessa's voice sounded strange.
Thin.
Almost frightened.
I turned toward her.
She had gone pale.
"Marcus, what is she talking about?"
I didn't answer.
I kept looking toward the bottom of the pool.
Elena had always loved this swimming pool.
She had designed the terrace herself.
She used to swim every morning before breakfast.
Sometimes I would wake up and find her standing beside the water, wrapped in a white robe, drinking coffee while the sun rose over the garden.
She had once told me something I never understood.
"This house has more secrets than you think."
I had laughed.
Now those words came rushing back.
"Daddy!"
Lily grabbed my sleeve.
"Please get Mommy!"
Vanessa stepped toward me.
"Marcus, stop."
I looked at her.
"What?"
She gripped my arm.
"Elena died fourteen months ago."
Her voice rose.
"You know that!"
I stared at her.
Fourteen months.
Fourteen months of grief.
Fourteen months of nightmares.
Fourteen months of believing the woman I loved had been taken from me.
And somehow, I had started building another life.
Vanessa had been there when I couldn't get out of bed.
She had brought meals.
Helped Lily with school.
Held my hand through the worst nights.
When she told me she loved me, I had believed her.
When she suggested that Lily needed a mother again, I had listened.
And when I bought the engagement ring, I thought I was finally choosing happiness.
But now my daughter was trembling beside the pool.
And Vanessa was trying to pull me away from the water.
"Marcus," she whispered, "you're frightening Lily."
I looked at my daughter.
"No."
My voice sounded different.
Harder.
"She's frightened because she saw something."
Vanessa shook her head.
"Children imagine things when they're grieving."
Lily screamed.
"I'm not imagining!"
I knelt in front of her.
"Baby, did you really see Mommy?"
She nodded desperately.
"She put her hand on the window."
My stomach tightened.
"What window?"
"The little round one."
She pointed again.
"She was crying, Daddy."
I turned toward the pool.
The circular hatch was nearly invisible beneath the moving water.
But now I could see a thin dark line around its edge.
And something else.
A faint movement.
Like fingers scraping against metal.
I stepped toward the pool.
Vanessa grabbed me again.
"Marcus, don't!"
I looked down at her hand.
"Let go."
"Please listen to me."
"Then explain that!"
I pointed toward the movement beneath the water.
Vanessa followed my gaze.
Her expression changed.
It happened so quickly I almost missed it.
Fear flashed across her face.
Not confusion.
Not disbelief.
Fear.
As though she recognized something she had never expected to see.
I pulled away.
"Stay with Lily."
"Marcus!"
I tore off my royal-blue suit jacket.
The expensive fabric hit the stone patio.
My shoes followed.
I dropped my phone beside the closed ring box.
Then I looked at my daughter.
"Don't move, sweetheart."
Lily reached toward me.
"Bring Mommy back."
Those four words nearly broke me.
I didn't promise.
I couldn't.
Instead, I stepped to the edge and dove headfirst into the pool.
The cold water swallowed me.
Everything went silent.
I opened my eyes.
Blue light surrounded me.
My heartbeat thundered inside my ears.
I kicked hard toward the bottom.
The circular hatch grew larger beneath me.
Up close, I could see that it wasn't part of the ordinary pool-drain system.
It had a thick metal rim.
A heavy handle.
And a narrow rubber seal.
Something had disturbed the seal.
I grabbed the handle with both hands.
It wouldn't move.
My lungs began burning.
I braced one foot against the tile and pulled.
Nothing.
I pulled again.
A few bubbles escaped from beneath the edge.
Then I heard something.
A dull metallic knock.
From below.
Three knocks.
A pause.
Then two more.
My blood turned cold.
Elena used to knock on Lily's bedroom door that way.
Three knocks.
Then two.
It was their little secret signal.
I pulled harder.
The hatch shifted.
Only an inch.
But it was enough.
Darkness opened beneath it.
A hidden space.
A place that should not have existed beneath our swimming pool.
I reached down.
The water around the opening trembled.
Then a hand suddenly emerged from the darkness.
A woman's hand.
Thin.
Pale against the shadows.
Its fingers stretched toward mine.
And on the fourth finger was a gold wedding ring.
My wedding ring.
The one I had given Elena seven years earlier.
The ring with a tiny blue sapphire hidden inside the band.
I recognized it instantly.
My heart seemed to stop.
The hand reached farther.
I stared into the black opening.
My eyes widened until they hurt.
And I realized that the impossible nightmare my daughter had described was somehow real.
There was a woman beneath my swimming pool.
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She was wearing my dead wife's wedding ring.
And she was reaching for me.