Well after looking at this and not getting any solid ideas I'm going to start with a piece I wrote near Halloween.

Enjoy.

As I look into the mirror, the imagery sends the hairs on the back of my neck on end. The slender hand disproportionate, emanating a chill through my shoulder, the bones twice as long as my own, yellowed with age and marred the fine lines running between the steely gray and black knuckles, smooth as marble. Points of light, white like stars reflecting off the surface.

 The shadow on the wall, black and moving of it's own accord. My chest vibrating with each heartbeat. A single bead of sweat careening down my cheek, leaving a moist trail of chilled sweat where it touches. The very will of this thing smothering my ability to focus on anything else.

 That bony hand slips onto my shoulder, fingernails looking more like curled scabs and hard as weathered bone close hard on my shoulder, digging into my flesh. The sound of wind starts to reverberate against the walls and a cacophony of indistinct voices start to creep into my skull, vying for more clarity than the other.

 Evil permeates from everywhere as I leave the room and whatever portal feeding off my very spirit to fuel its fissure to whatever place they are attempting to escape.