For almost a year, the Ramirez family noticed something strange about the small upstairs closet in their 1950s home. No matter the season, a cold draft crept through the floorboards, chilling the entire hallway. They tried everything: insulation, sealing gaps, even replacing the door. Yet the icy air continued to seep upward from somewhere deep below.
They chalked it up to old-house quirks until one evening, as they were folding laundry, the floorboards gave off a faint but unmistakable knocking sound.