I dreamed I was the last person in the factory

I was walking through the empty shop floor at 3 a.m., boots echoing on concrete. The machines were cold, but not broken—just waiting. I kept checking the time on my phone, but the screen stayed black. Then I heard someone else breathing behind me. I turned, but no one was there. Just the hum of the old HVAC, like it knew something I didn’t. When I woke up, the silence in my flat felt heavier than before.