That One Entitie

With a loud bang, you opened your eyes, but you couldn't move. Paralyzed, your gaze showed over the bedpost, through the wide-open door into the dark hallway. Something moved toward me in the bedroom. A panting sound. Then you saw something out of the darkness. Huge paws emerged, which circled the carpet out of nowhere. ended at a rickety torso. A black-and-gray creature with that cold, expressionless expression looking at you