Don't Answer the Door at 3:33 AM
For as long as she can remember, Emma's family has lived by one rule: Never answer the door at 3:33 AM. No matter what you hear. No matter how loud the knocking gets.
No one ever explained why, only that breaking the rule would bring something terrible. Something you can't take back.
One night, curiosity wins. Emma opens the door.
Standing on the porch is herself. A terrified version of her, whispering, "Don't let it in." Before she can react, the double vanishes-and that's when everything begins to change.
Her parents start forgetting details about her. Her reflection lingers too long in the mirror. People at school disappear overnight, as if they never existed. And something is in the house. Watching. Waiting.
The knocking returns each night. But now, it isn't just at the front door.
Emma broke the rule. Now, she must uncover the truth before she loses herself completely.
Because once the door opens, it never truly closes.