This time, I knew it was not my imagination. The sound had come from the wall beside me. I slowly turned my head. Nothing was there. My heartbeat picked up. “It’s probably nothing,” I whispered. But even I did not believe that. The room remained silent. Then another sound came. Knock. Knock. Knock. Three slow knocks. I stared at the wall, wondering if I should call someone. But what would I even say? I think your wall is making noises? It sounded ridiculous. Then I felt it. The temperature in the room changed. A cold feeling moved across my skin. Not like the cold outside. Different. I rubbed my arms and looked around. Everything looked the same. Until my eyes landed on the mirror. I froze. The surface of the mirror was slowly fogging. My breathing stopped. That

