The voice

It started out as a distant whisper then it got louder, at first I thought it was just my mind playing tricks on me. I heard it again. It sounded right next to me, it sent shivers down my spine. I looked around and saw nothing. I went back to typing this article my boss wanted. The only light in my office was the one being illuminated from my computer. I heard it again, this time outside of my office. My computer started flickering then it went out. I tried to turn it on, nothing it seems the generator went out. I dug around in my top drawer for my flashlight. Once I finally found it, I went out to look around. I knew it was a stupid idea but I had to get to the generator and get it going so I can finish that article. I looked around the dark room with only my flashlight illuminating it. I thought I saw something run across the light but I guess it was only my imagination. I was in the stairway to the generator, that's when i heard that voice I've been hearing. This time it was booming loud, I dropped my flashlight to cover my ears. After what seemed like hours of pounding, it stopped. Just like how it started. It was silent, there was nothing. I bent down to pick up my flashlight and continued my journey. Whatever it was sure seems like it doesn't want me to finish this article. I finally got to the generator and flipped the switch. As I heard it starting up I saw that figure go by again. "Who's there?!" I called out. 'Man this place is creepy..' I thought. The lights were on so I turned off my flashlight and made my way up stairs. As I got back to my floor I saw that it was time my co-workers would be coming in. Once I saw one of my co-workers come in I asked them if they have heard anything when they were here late. "Yeah maybe but it was just my imagination" they said. That's when I saw it. It was behind my co-worker, it was tall, shadow like, had glowing red eyes, and long claw like hands. It looked me right in the eyes and whispered in a low demonic voice "you're next" then it punched through my co-workers chest. The blood splattered on my face and clothes, I let out a yell as I watched my co-worker slump to the ground, dead. The rest of my co-workers filed in, they looked at me in horror as if I killed him. I looked at my hands and saw the blood, I panicked and ran out of there. I kept running until I hit the subway station. I looked at my hands again they were back to normal, no blood nothing. The people on the station looked at me weird but did nothing. Once I arrived back home I got into the shower, got cleaned and put new clothes on. I went out back to burn my other clothes, that's when I heard the voice again "I'm coming for you". I ran in my house faster than you could blink, I ran to my kitchen and grabbed a knife. I held it in a defensive position "come out you coward!" I yelled "show your face" I was ridden with fear. I saw the creature, it was in front of me. It ran at me then nothing, i saw nothing but darkness there was no light, no tunnel, nothing. I was dead.