The lights flickered as Emma checked her phone—2:47 AM. She heard a soft knock on her bedroom door.

The lights flickered as Emma checked her phone—2:47

AM. She heard a soft knock on her bedroom door.

"Mom?"

she whispered. No answer. Another knock.

Slower this time. Emma opened the door… the hallway was

empty. Then her phone buzzed. A message from her mom

downstairs:

"Don’t open the door. I hear it too."