THE WHITE DOOR AT THE END OF THE HALLWAY HOLDS A SECRET WE WERE NEVER MEANT TO FIND

The heavy footsteps paced back and forth just outside our bedroom door, the rhythmic dragging of the unseen chain sending vibrations straight through the floorboards and into the soles of my shoes. Buster whimpered loudly, pressing his golden body flat against the far corner of the room, refusing to look toward the entrance.

"Mark, it has your voice," Sarah whispered, tears of absolute terror freezing on her cheeks as she stared at the door. "It's using your exact words from hours ago. How is that even possible?"

"It records time differently," I murmured, my mind struggling to process the impossible physics of the situation. "If this thing has been trapped in the walls since 1974, maybe it doesn't experience linear time. Maybe it heard us tonight through the wood before we even opened the door, and now it's playing it back."

"That doesn't make any sense!" she cried out, her voice cracking with hysteria. "Nothing about this makes sense! We need to break this door down. I don't care about the containment field or the tapes—we need to get out of this house right now!"

"If we break the door down and run into the hallway without finishing the audio logs, the note said the containment fails permanently," I argued, though my own resolve was crumbling under the relentless psychological torture of the pacing footsteps outside. "We have to know what Dr. Vance did to trap it in the first place."

I reached down and pressed the fast-forward button on the reel-to-reel recorder. The tape whirred at high speed, high-pitched gibberish screeching from the speaker until I hit play again at a section marked by a grease-pencil mark on the machine's chassis.

“Recording 04,” Dr. Vance’s voice returned, sounding panicked and exhausted, punctuated by the sound of glass shattering in the background. “The boundary is failing. The subject has realized it doesn't need to break the wood; it only needs someone on the inside to acknowledge its reflection. We hung a mirror on the north wall of the spare bedroom to test optical refraction. Big mistake. It used the glass as a threshold. If you're listening to this, you've probably already found the hidden panel. Do not look into any reflective surface in the north hallway after midnight. It uses your face to wear your shape.”

I froze. The spare bedroom—the room with the white door—didn't have a mirror hanging on the wall now, but when we first toured the house, an antique full-length vanity mirror had been bolted directly to that exact spot before the previous owners cleared out the estate.

Suddenly, the pacing footsteps outside stopped dead.

Silence swallowed the hallway. Then, a soft, polite knock tapped twice against our bedroom door.