Chapter 1 - The Three Knocks
At two in the morning, I caught a six-year-old girl cleaning my private study with a baby strapped to her back because she was terrified her mother would lose her job and leave them homeless. But what stopped me cold wasn't the sight of her tiny hands fighting a vacuum almost as big as she was. It was when she looked at my library wall and quietly asked, "Mr. Duca... why does someone keep knocking from inside there?"
I'd spent the evening stopping powerful men from making stupid decisions, and by 1:47 a.m., I wanted one thing: silence.
Instead, the moment I stepped into my Beacon Hill house, I heard a vacuum upstairs.
Wrong hour. Wrong floor.
I climbed the service stairs, following the strained rhythm.
Start.
Stop.
Start again.
Light spilled from my study.
I stopped in the doorway.
A little girl stood on her toes beside my desk, dragging a wet cloth across the leather blotter. Her small hands were red from cold water, and tied across her back in a faded blue shawl was a sleeping baby.
I recognized her.
Mia Harper.
Six years old.
Her mother, Grace, had worked in my house for eight years. Eight years, and I realized with a bitterness I didn't like that I'd barely ever looked at the woman long enough to know anything about her life.
Mia grabbed the vacuum with both hands.
She pushed.
It barely moved.
Her jaw tightened, but she didn't complain. She planted her feet and shoved again, pausing only to reach behind herself and make sure the baby was still secure.
Then she whispered, "It's okay, Lily. Don't wake up."
I remained in the shadows.
"We have to finish before Mr. Duca gets home," she murmured.
My eyes narrowed.
The cloth slipped from her fingers. She picked it up immediately.
"If Mama loses this job, we won't have anywhere to go."
Something inside my chest went completely still.
I stepped into the light.
Mia spun around.
For half a second, terror flashed across her face.
Then she straightened her tiny shoulders as though she could somehow protect the sleeping infant behind her from me.
"Where is your mother?" I asked.
Her fingers tightened around the cloth.
"She's sick."
"And you're doing her work?"
Mia swallowed.
"Please don't fire her."
My anger rose, but not at the child.
Before I could answer, she suddenly glanced toward the library.
Not at me.
At the wall.
Her expression changed.
"Mr. Duca?"
"What?"
She hesitated.
"Can I ask you something?"
"Ask."
She pointed toward the bookcase.
"Why does someone knock behind that wall every night?"
I stared at her.
"What did you say?"
Mia lowered her voice.
"Sometimes it's scratching. Sometimes three knocks. Mama says I'm imagining it."
My pulse slowed.
I'd owned this house for years. I'd walked past that wall thousands of times.
There was nothing behind it.
Then Mia's eyes widened.
"Wait."
She raised one finger.
"Listen."
I turned toward the library.
For several seconds, there was nothing but silence.
Then, from somewhere behind my bookcase...
Knock.
Knock.
Knock.
The sound was faint.
But it was unmistakable.
I crossed the room.
Mia watched me with enormous eyes.
I put my palm against the wall.
Nothing.
I pressed harder.
Still nothing.
"Has this happened before?" I asked.
She nodded.
"Almost every night."
"Since when?"
"I don't know."
"Think."
Mia shifted the baby higher against her back.
"Since Mama started working late."
That answer bothered me.
Grace had worked late plenty of times over the years. Yet I'd never heard knocking.
I glanced at the clock.
1:52 a.m.
Then I looked at Mia again.
"Where is your mother now?"
"Downstairs."
"In the kitchen?"
She nodded.
"She couldn't finish?"
Mia shook her head.
"She was throwing up."
The answer hit differently.
"How long has she been sick?"
Mia shrugged.
"Tonight."
I started toward the door.
Mia suddenly caught my sleeve.
Her fingers were freezing.
"Please don't tell her I'm bad."
I stopped.
"Bad?"
"For coming upstairs."
Something in my face must have changed because she quickly added, "I wasn't touching your things. Mama said never to."
"You aren't in trouble."
She looked unconvinced.
"I mean it," I said.
Then another sound came from behind the wall.
Scratch.
Mia flinched.
I turned sharply.
"Did you hear that?"
She nodded.
We both stared at the bookcase.
I had a house manager, two security guards, motion detectors, cameras, and an alarm system.
There was no logical explanation for someone being inside a sealed wall.
I pulled out my phone.
"Stay here."
Mia shook her head.
"No."
"Why?"
"Mama told me not to be alone."
The little girl looked toward the hallway.
For the first time, I realized she wasn't afraid of me.
She was afraid of whatever might be behind that wall.
I held out my hand.
"Then you're coming with me."
Her eyes widened.
I immediately clarified, "To find your mother."
She hesitated before taking my hand.
Her palm fit completely inside mine.
We went downstairs.
Grace was not in the kitchen.
The back door stood open.
Cold air flowed through the house.
My security alarm should have sounded.
It hadn't.
I walked toward the doorway.
A shadow moved outside.
"Grace?"
No answer.
Then I saw her.
She was sitting on the stone steps, bent over, one arm wrapped around her stomach.
"Mom!"
Mia ran.
Grace looked up.
Her face was pale.
"Mia? What are you doing upstairs?"
Grace tried to stand.
She failed.
I caught her elbow.
She froze when she saw me.
"Mr. Duca."
Her voice was barely audible.
"You should have called for help."
"I didn't want to bother you."
"You were sick."
She looked at Mia.
Then at the baby.
Then back at me.
"I'm sorry."
"For what?"
"I couldn't finish the downstairs rooms."
I stared at her.
"That's what you're worried about?"
She lowered her eyes.
"I can't afford to lose this job."
Mia stepped between us.
"Mama didn't ask me to clean. I just wanted to help."
Grace shut her eyes.
"Oh, sweetheart."
I looked from mother to daughter.
"How long have you been worried about losing your job?"
Grace didn't answer.
That told me enough.
I crouched beside her.
"You're not being fired."
She stared at me.
"What?"
"You're not being fired."
"But the policy says—"
"I own the house. I can change the policy."
Her eyes filled.
"I don't understand."
"Neither do I."
I stood.
"You're sick. You should be home."
"We don't have a home right now."
The words came out so quietly that for a moment I thought I'd misheard her.
"What?"
Grace's mouth trembled.
"The landlord locked us out yesterday."
Mia lowered her head.
The baby stirred.
I felt something cold move through me.
"Where were you sleeping?"
"In the staff cottage."
"That's not what I asked."
Grace said nothing.
My jaw tightened.
"Grace."
She finally whispered, "The landlord gave us until Friday. I thought if I worked extra hours, he'd wait."
"Who told you to work extra hours?"
"No one."
She looked embarrassed.
"I just need the money."
I pulled out my phone and called my property manager.
"Find out everything about Grace Harper's housing situation. Tonight."
Grace immediately shook her head.
"No, please."
"You're sick."
"I don't want charity."
"This isn't charity."
She looked at me.
"What is it, then?"
"I don't know yet."
Upstairs, something slammed.
We all froze.
Mia looked at the ceiling.
"The wall."
I was already moving.
We reached the library.
One of the books on the shelf had shifted.
Just slightly.
I approached it.
The title was embossed in gold.
The History of Boston Estates.
I pulled it.
Nothing happened.
I tried another.
Nothing.
Mia stepped forward.
"Not that one."
I turned.
She pointed to the oldest section.
"The red one."
I pulled a dark red book from the shelf.
A click sounded.
The entire bookcase moved outward by less than an inch.
Grace gasped.
"What is that?"
I stared at the seam running down the side of the wall.
I pushed.
The bookcase swung inward.
Behind it was a narrow black passage.
The air smelled old.
Dusty.
Metallic.
And then we heard it again.
Knock.
Knock.
Knock.
Mia tightened her grip on my hand.
"I told you."
I looked down at her.
She wasn't smiling.
She wasn't frightened anymore either.
She looked certain.
I stepped into the passage.
At the far end was a small wooden door.
Fresh scratches covered the lower half.
Someone had been trying to get out.
I reached the handle.
Locked.
Then something moved on the other side.
A voice whispered through the wood.
"Leo?"
I froze.
Almost nobody called me that.
Almost nobody had in years.
Grace stared at me.
Mia held her breath.
I leaned closer.
"Who are you?"
Silence.
Then the voice answered.
"It's Elias."
My blood ran cold.
Elias Duca.
My father's younger brother.
A man who had supposedly died fourteen years ago.
Another three knocks sounded.
May you like
Then the voice said the sentence that changed everything.
"Your father lied to you."
