[WP] In Monsters Inc., A monster goes in one door to scare a child, only to find that the child had made a demonic sacrifice in his bedroom. The child thinks that the monster is a gift from Satan.

The door itself already emitted a gloomy atmosphere. Could this be it? Could this finally be something interesting? I had soon become bored when he started working at Monster Inc. Scaring children was fun of course, but I wanted more.

I had been one of the few monsters that were not scared by the children. The children merely intrigued me. At one point, I also began to develop this odd desire to see those creatures hurt. The subject had been talked about, but the main arguments made were all scientific. They were all innovative ideas on how to produce more screams. I didn’t mind the efficiency. No, to be completely honest, I just craved for the hurt it would bring them. To see their innocent faces filled with not just fear, but agony as well. I never told anyone about these thoughts. Even at this place, such thoughts were not appreciated.

“Do you want another door?” Barney gave me a worried glance. He was a nice guy, but a bit too soft.

“Most certainly not. This will bring me something interesting. I can feel it.”

He did a step back, confused by my answer. Who in his sane mind would enter such a door? I approached the door and took my time inspecting it. There was no reason to be careless.

“Looks fine to me,” I turned my head around and nodded.

Barney didn’t move a muscle. He had probably declared me mad. The door opened just as all the others did, which surprised me a little. This was way too ordinary. I slipped through the door and heard it close behind me.

It was as if I had become blind. Never before had I experienced such a weird darkness. The smell that slowly infiltrated my nostrils interested me. For some reason, I could determine what the smell was from. I hadn’t killed anybody yet, but the smell informed me of blood and death.

This was interesting indeed.

I quickly scanned for a light switch and found one to my left. The light represented me with a scene that many would call horrendous. The room was like all the others he had seen, but it wasn’t the state of the room that was out of the ordinary. It was the boy that was kneeling next to his bed, beside a very dead creature. If one looked hard enough, you could still recognize a girl in the red mess.

The state of the girl’s violated body and the knife in the boy’s hand let little left to the imagination about what had happened.
When he noticed that he wasn't alone a vicious smile formed on the boy’s face.

A smile that terrified even me.

“Satan does keep his promises,” his head turned towards me.

Suddenly I didn’t find this situation that interesting anymore. After all, no one is eager to die. My body stopped listening to my demands. I couldn't get myself to move, although every sense was on alarm mode. He had gotten onto his feet and did a step in my direction. “You must be my gift,” his soft whisperings awakened my deepest and cruelest visions.

“Kill my enemies. Torture them with me.”

Something forced me to nod and say: “Gladly.”

That’s when everything started. Later I realized that my own brain wanted me to nod. That he was exactly what I needed. He showed me the true nature of monsters. What our hidden desires are. The gloomy door stayed shut.

/r/WritingPrompts Thread