Tenebra

Let's try a little experiment.

Turn off all your lights at midnight, and stand still in the middle of the hallway. Your vision will be obscured in the deafening darkness. Make sure you are the only one awake.

Now, do you hear the footsteps? Cold, hard footsteps. You probably won't here it at first. But you will. They will get closer, and louder. You will have to be very keen.

"It's just my heart beating," you say to yourself. You laugh and say that nothing in the darkness can harm you. But does the beating of your heart get louder and louder by the second?

Suddenly the incessant footsteps stop. Despite yourself you breathe a sigh of relief. But an unknown malaise spreads over you. You freeze in place, your fear taking control of your soul. And from here, if you stare into the black chasm across the hallways extremely carefully, you will see it staring back at you.