Chapter 1 - The Door That Shouldn't Open

"Please don't make me go back inside," the boy whispered. "The man in our kitchen says my mom is dead. But I heard her knocking under the floor."
Officer Ben Mercer had responded to a neighbor's report of a child standing alone on a porch. He had expected a lost key or a missed school bus. Instead, seven-year-old Eli Parker stood with his navy backpack hanging off both shoulders, his little fingers wrapped around a brass doorknob as if it were the only thing holding him upright.
"What's your name, buddy?" Ben asked, lowering himself to one knee.
"Eli. I already told the other man. He said I was confused."
"What other man?"
"The one who came last night. Not police. He had a badge on his coat."
An autumn leaf brushed the boy's shoe. Across the street a sprinkler clicked through an ordinary morning. Ben kept his voice level.
"Tell me about the knocking."
"Three knocks, then two. It's our secret. Mom does it when she comes home and my hands are full."
"Where is your dad?"
"He died in March." Eli swallowed. "Mom said we can still be a family with two people."
"And who is in the house now?"
"Mr. Vale. He helps at Mom's work. He said she's sleeping and I shouldn't bother her." Eli's eyes filled. "But her shoes are gone. She never sleeps with her shoes on."
Ben quietly touched the radio at his shoulder and requested another unit, giving the address without saying what he feared. He stood far enough away that Eli could move, near enough to catch him if his knees gave out.
"You did the right thing finding an officer," he said. "Do not open that door for me unless you want to."
"He told me to open it when the school bus came. So it would look normal."
A flicker crossed the boy's face: shame, as if he had betrayed someone by telling the truth.
"Eli, nothing about this is your fault."
The child turned the knob. The charcoal-gray door eased inward three inches. The hall beyond was dark, even though the sun was bright. Ben smelled fresh paint, coffee, and something sharp like bleach.
From beneath the floor came three faint taps. A pause. Then two more.
May you like
Eli's fingers tightened on the knob.
And a man's voice from inside said, very softly, "Eli. I told you not to do that.