Chapter 1

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.
May you like
Knock.
Knock.