For five years of our marriage my husband scrubbed the bathroom three times a day then my best friend a forensic pathologist walked in and froze. “Get out. Now” she grabbed my wrist with ice-cold fingers right now “Call the police”

The interrogation room at the State Bureau headquarters was lit by buzzing, sickly fluorescent tubes that hummed at a frequency that felt like a migraine boring into my skull.

For four hours, Detective Miller and an assistant state attorney laid out the timeline on the stainless steel table. Photograph after photograph. Document after document.

There was my college apartment lease from seven years ago, bearing my signature alongside Sarah Jennings’s looping, girlish handwriting.

There was the initial missing person's report I had filed with the municipal police when Sarah hadn't come home from her shift at the campus medical center.

And there, pinned to the corkboard at the center of the wall, was a photograph taken by a traffic camera three days after Sarah vanished: Ethan’s black Ford F-250, idling at an intersection three hundred yards from my apartment complex.

"He didn't meet you by accident, Natalie," Clare said. She had refused to leave the room, exercising her authority as a state forensic consultant to sit in the corner, though she was technically barred from representing me. "He was hunting her first. And when she was gone... he took you."

"Why?" I rocked back and forth on the metal folding chair, my arms wrapped around my stomach. "If he took Sarah... why didn't he kill me then? Why spend five years playing house? Why marry me?"

"Because you were his trophy," Detective Miller said, leaning over the table, his knuckles pressed against the cold metal. "Look at the pathology, Natalie. Psychopaths of this variety don't just collect trinkets. They collect environments. He didn't just want to eliminate Sarah; he wanted to consume her life. He watched you grieve. He inserted himself as the comforting, dependable shoulder to cry on. He moved you thirty miles away, built a house around you, and placed the very mechanism of her disposal directly under your feet."

"The subfloor," I choked out, the horror rising in my throat like bile. "The first profile Clare found in the master bath... was it..."

"We ran the rapid DNA match against Sarah Jennings’s dental records from the cold case repository," Miller said gently, his voice losing its accusatory edge for the first time. "The deepest layer of staining in the floor joists—the wood closest to the main drain pipe—belongs to Sarah. She was the first person to die in that room, Mrs. Vance. Before the tile was ever laid. Before the drywall was even painted."

The image struck me with the force of a sledgehammer.

Ethan had brought me to that house when it was still a dusty, half-framed construction site. I remembered standing in the master bedroom, the floorboards bare pine, the smell of fresh cedar hanging in the air. Ethan had stood behind me, wrapping his strong, calloused arms around my waist, resting his chin on my shoulder.

*Can you see it, Nat?* he had whispered into my ear six years ago. *This is where we’re going to build our life. Everything clean. Everything brand new. A fresh start for both of us.*

Sarah was already under the floor. While we stood there planning our wedding, she was beneath our feet.

"He kept you living over her grave for two thousand days," Clare whispered from the corner, her eyes glistening with unshed tears. "And every time you walked into that bathroom, every time you took a shower, every time he scrubbed the floor with bleach... he was renewing his victory over you. Over her. Over everyone."

"Detective!"

The interrogation room door banged open. A young trooper stood in the doorway, his face pale, holding a radio unit in his hand.

"We’ve got a situation at the Whispering Pines property," the trooper said, his chest heaving. "The perimeter team just called it in. The generator powering the floodlights was deliberately sabotaged ten minutes ago. The whole block is dark."

Miller was on his feet instantly. "What about the tactical unit guarding the cistern?"

"No contact," the trooper replied, his voice tightening with panic. "Radio silence from both officers stationed at the shed. And Detective... the neighbor’s security camera on the corner caught an F-250 rolling down the service alley with its headlights off three minutes before the power dropped."

My blood turned to liquid nitrogen.

"He didn't run," I breathed, rising from the chair, my fingernails digging into my palms. "He went back."

"Why would he go back to the scene?" Miller barked, unholstering his sidearm and checking the chamber. "The house is surrounded by crime scene tape, the whole state is looking for him!"

"The floor safe," I shouted, the memory of his phone call exploding in my mind like a flare. "He didn't leave the money at Blackwood Ridge! That was a distraction to send you out into the mountains! The package is in the house! The real evidence—the things he couldn't dissolve in acid—they’re hidden inside the structure!"

Clare drew her weapon, her face hardening into an expression of grim, lethal determination.

"He isn't going back for money, Miller," Clare said, her voice dropping into a register that made the room freeze. "He’s going back to finish the job. He knows we found Sarah. He knows the game is over. He’s going to burn that house to the ground, and he’s going to take everything with him."

Miller looked at me, then at Clare.