My husband’s obsession with cleaning the bathroom never made sense to me. Then my forensic pathologist friend spotted something I had overlooked for years.

The officer nodded at the phone. “You can answer that, Mrs. Pierce. Act completely normal.”

I swiped the screen with a trembling thumb and lifted it to my ear. “Hello?”

“Where are you?” Ethan’s voice was clipped, breathless.

“I’m… I’m at home.”

Silence stretched across the cellular connection. When he finally spoke again, the loving cadence of the man I married was entirely gone. It was replaced by a hollow, calculating frequency. “Is your friend Clare still there?”

I locked eyes with Clare across the room. “Yes. She’s here.”

Another agonizing pause. I could hear the faint sound of traffic in the background on his end.

“Natalie, listen to me,” Ethan breathed, his voice dropping to a harsh whisper. “Do not let her go into our bathroom.”

My stomach plummeted into an endless abyss. “Why?”

“Because,” he stammered, the lie forming clumsily on his tongue, “I used a heavy industrial chemical treatment in there last night. To kill some black mold. The fumes… they could be highly dangerous. Just keep the door shut.”

Clare, who was close enough to hear the tinny audio leaking from the earpiece, vigorously shook her head. Lie, she mouthed.

Before I could formulate a response, heavy footsteps echoed down the staircase. The first officer reappeared in the living room. He wasn’t carrying any obvious evidence, but his entire demeanor had shifted from bored skepticism to rigid alertness. He didn’t speak to me. He looked directly at his partner.

“We need everybody out of the house,” the officer commanded quietly. “And I need you to radio for a shift supervisor. Now.”

Through the phone, Ethan heard the authoritative voice. “Nat? Who is that? Who is in the house?”

I couldn’t force my vocal cords to work.

Ethan’s voice escalated from a whisper to a frantic hiss. “Natalie, what did you find?”