The strange sound that came from my walls woke me up once again. This time it was just past 3 am. I groaned in frustration and stuffed my head in between my pillows. This had been an ongoing situation for months. I'd never realized it until it got cold, so my deduction was that it was my downstairs neighbor's heating unit. It made sense to me...

But it didn't really sound like a heating unit either. I'm far from a heating mechanism enthusiast, and I'd never turned on my heater in the seven years of living here. Never saw the point in racking up the electricity bill when I could just apply every blanket in the hallway closet you know?

Another thing that didn't add up for me, was that my downstairs neighbor's heating unit wasn't adjacent to my bedroom. In fact, it was in a different room entirely.

It sounded as though it was coming from the wall right next to my bed. That was probably the reason for it sounding so loud. I wiped the sleep from my eyes and pressed my ear against the wall.

Bingo, I could hear that sound. That cold and dry sound of machinery. The only thing that made sense was that it was a heating unit. It was pretty loud and very noticeable. But deep down I knew it was one of those things where I'd have to manage. I couldn't tell the neighbors to not use their heater. I was on the verge of returning my head to my pillow when I heard the voice.

"Good evening Miles." It said. It was low, horse, and there was a certain chill to it.

I frowned. Did I hear that right?

I pressed my ear to the wall again.

"You heard me, Miles."

I began to shake, and it had nothing to do with the fact that it was freezing in my room. I didn't know what to say. Was I dreaming? Was I going insane?

"Come on over Miles."

And that's how I found out that there was a man living in my apartment walls.