Chapter 3 - The Cold Spot

Buster’s soft whimpers echoed off the bare plaster walls of the empty bedroom, sending a fresh wave of unease crawling up the back of my neck. I watched as the golden retriever slowly backed away from the center of the room, his tail tucked low between his legs, his eyes wide and fixed on a patch of empty floorboards about three feet from the open window.
"Come here, buddy. It's okay, there's nothing here," I coaxed, forcing a calm tone into my voice that I certainly didn't feel.
I stepped forward, sweeping the smartphone flashlight downward to illuminate the exact spot where the dog had been sniffing. As the beam hit the floor, I noticed something strange. A fine, powdery layer of white dust—resembling ash or dry plaster—was disturbed in a neat, circular pattern right in the middle of the pristine boards. It looked as though something heavy had been resting there just seconds before we opened the door, something that had vanished into thin air.
"Sarah, look at this," I called out softly, pointing down with my free hand.
Sarah sighed, her footsteps hesitating in the doorway before she finally walked into the room, keeping her arms wrapped tightly around herself. She glanced down at the floor, her expression a mix of skepticism and mounting exhaustion. "It's just drywall dust, Mark. The contractors were up here last week patching the ceiling. You know how messy those guys were."
"Contractors didn't leave a perfect circle, Sarah," I countered, crouching down to inspect the residue. I reached out and hovered my hand a few inches above the floorboards.
Instantly, a wave of biting, unnatural cold rushed against my skin, so intense it felt like sticking my hand into a deep freezer. I pulled my fingers back with a sharp gasp, shivering violently as the chill lingered on my fingertips.
"What is that?" Sarah asked, noticing my reaction and taking an involuntary step backward. "Did you touch something?"
"It's freezing," I whispered, looking up at her in disbelief. "Put your hand down here. Go ahead, feel it."
Reluctantly, Sarah knelt beside me and extended her hand toward the dusty circle. The moment her fingers crossed the threshold of the invisible boundary, her breath hitched, and she snatched her hand back, her eyes going wide with genuine fear. "It's... it's like ice. How is that even possible? The window is open, but the rest of the room is warm."
"It's localized," I said, my mind racing through rational explanations and coming up entirely empty. "Just this one spot."
Before either of us could process the impossibility of the temperature drop, a faint, metallic scraping sound began again—not from the hallway this time, but from directly beneath the floorboards on which we were kneeling. It sounded like metal dragging slowly across wood, moving deliberately from beneath the empty bedroom toward the adjoining master suite.
Buster let out a sharp bark, rushing to the baseboard and scratching frantically at the white molding, desperate to dig through the wall.
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"Mark," Sarah whispered, grabbing the sleeve of my grey t-shirt, her knuckles turning white. "That sound isn't coming from the room. It's coming from inside the walls."
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