Sarah sat in her dimly lit apartment, the only sound the faint hum of the refrigerator. Her phone buzzed, cutting through the quiet like a knife. Startled, she glanced at it, reading the message from her brother, David: "Are you at the house?" "No, why?" she replied, her fingers trembling slightly. A long pause followed, the seconds stretching into an eternity. Then, another message: "I’m still here. The door’s locked, but I hear footsteps upstairs. Are you playing a prank?" Her heart skipped a beat, a cold dread creeping over her. She knew the house had been empty since their parents' passing.

David stood frozen in the hallway, his eyes fixed on the staircase. His mind raced, caught between disbelief and fear. "I just saw you. I swear, you're standing at the top of the stairs," he typed, his hands shaking. The phone rang, startling him. It was Sarah's number. He answered, his voice trembling, "Sarah?" But there was no reply. Just heavy breathing—slow, deliberate, and impossibly close.

Sarah clutched her phone, anxiety gnawing at her insides. Her brother's silence on the other end was suffocating. Then, a whisper, chilling and unfamiliar, "Why aren’t you running?" A shiver cascaded down her spine. She wasn’t at the house, yet someone—or something—was.

David backed away slowly, his eyes never leaving the staircase. His mind screamed at him to run, but his feet felt rooted to the spot. Desperation clawed at him as he dialed the police, his voice barely a whisper, "Please, send help. There's someone in the house."

Sarah paced her apartment, her thoughts a jumbled mess. She couldn't shake the feeling that something was terribly wrong. The memory of the whisper echoed in her mind, chilling her to the bone. "Stay safe, David," she texted, knowing it was all she could do from miles away.

The police arrived, their presence bringing a semblance of safety. David watched them search the house, the morning sun casting a warm glow over the once foreboding walls. Yet, the unease lingered, a reminder of the night's haunting echoes. "There's no one here now," an officer told him, but the words offered little comfort. David knew what he had seen, and the whisper still haunted him, a sinister promise lingering in the back of his mind.