Well, this wasn't supposed to happen. O_o But someone brought this story back from the dead so I could write a proper ending. ;)
So my thanks go to GotboredandwroteAbestseller.
Who says happy endings are a must? :3
Enjoy!

We were just having fun.
How did it turn out like this?
How did we turn out like this?
Steve tried to warn us. Good ol' Steve.
He was my best friend you know.
Before that night. Before we went trick-or-treating.

If you are reading this, that means there is still hope. There is still someone left to read this.
I'm not sure if there are still any humans left up-top, but I pray there are. Not that anyone could listen to my prayer. But if you are reading this, if you are a surviver, or the descendant of survivors, you deserve to know the truth.
But I'm getting ahead of myself. My name is Andrew. They used to call me Drew, now they don't call me anything anymore.
That night, the night we went trick-or-treating, was the night that everything ended. And everything began.

I used to live in small, peaceful town. A little too peaceful actually. Me, my best friend Steve, and a few more friends had joined us for trick-or-treating. Being thirteen, we felt a little silly, but we had decided that we should go together on our last year. Before we really were too old.
All of a sudden, Steve started acting weird. He kept saying things like "He's coming!" and "We can't stay. We have to leave". He kept going on about some freakish fella in a house that I knew didn't exist. Never had in fact. Everyone just laughed at him. But the look in his eyes, I will never forget. His eyes begged me to believe him, and even if I didn't, I would have listened.
That is, if Mary hadn't been around. I had a little crush on her. Ok, not-so-little crush. I was madly in love. She kept holding my hand and whispering in my ear that he was just trying to scare us, and I started to believe her.
He went home. I stayed. For love. It's really quite a powerful thing, love. But it kills your braincells faster than lightning can strike. Well, at least I won't have to worry about such trivialities anymore.

Not long after Steve had left us, everything suddenly went dark. The moon was still shining in the night sky, and the lanterns we carried were still lit. There just wasn't any light. I could see as if it was midday, but everything was black.
When a shadow suddenly appeared in front of us, I knew Steve had been telling the truth. The dark figure looming overhead, we had no change. I won't say what It did to us, human minds cannot withstand such a thing.
When I came to, only Benny and me had been left alive. If that's what you can call it. The others had been more lucky. They had been too 'frail' to endure.

The being had turned us. It had turned us into those like itself. It brought out all the anger, sorrow, hatred, jealousy, spite and darkness in us. We had become what you might call demons. But Benny's mind was strong. He fought It. He fought so hard, that It considered him a eyesore. It killed him. Lucky Benny. If only I had had enough strength left to fight It. But I didn't.
It unleashed a side of me so dark, I didn't know I had it. I couldn't believe that that monster was also a part of me. But it was. I could feel everything it felt. See everything it saw. I was that monster. But I couldn't stop myself.
Something inside stirred and wouldn't rest. Something called for blood.

I was sent out to kill. And kill I did. The entire town was laid to waste by my own hands. Or so I thought. Months later, I would cross swords with my old friend Steve. He had grown so much. You see, in those months that we, the servants of Hell, had been killing people, turning people, raping people, destroying lives, the servants of Heaven had reinforced their ranks as well. He had become an angel.
Wings whiter than snow, golden hair braided down to the base of his spine, his eyes burning with the light inside of them. He was so beautiful. I couldn't stand it.
He had become so beautiful, yet I had become an unsightly monster. My claws, tail, horns and even my eyes dyed crimson with the blood I had shed.

For the first time after being turned, I felt the rage known as jealousy. I fought with all my might. I tried to kill him. You see, most demons were once humans who sought power. The price for that power however, was to loose all control of their emotions. And there would only be room in our undead hearts for one feeling at a time.
And so, as his red soul stained mine even more, I cried. My tears so bitter that wherever they touched, no life could ever exist again.

In my despair, It came to visit me once more. To my surprise, It hadn't come to mock me, or punish me, but to comfort me. It actually understood my pain, and I realized, It had something important taken away from him to. Something that could never be brought back.
It explained to me, that everything that happened was part of Gods plan. He had given rise to evil, to darkness, so that humans would always look up to him for salvation.

I swore to free all life from His reign. And together, we did. We killed God. But then It wanted to take His place. I couldn't allow that. The blood on our hands was proof that we had no right to the throne.
So I killed It. And I killed every demon I could find until I was the only one left.

Heaven and Hell are the same now. Dead, barren wastelands. My tears will keep them that way.
And now, as I am the last demon left, I leave my story behind, so that, if there are any humans left, they can learn from our mistakes.
And now, I too must pay the price for the blood that is on my hands. I am more than happy to. Now, I can finally tell Steve how sorry I am.
He said that he would wait for me. And this time, I believe him.