The Sons of Men
The nature of this entity is largely unknown. As far as Elliot and Shane know, it has simply always lived in their decrepit home. The ghost started as a small shadow that appeared out of the corner of Shane’s eye. The creature had the distinct ability to make the room where it appeared to be contained easily forgettable and difficult to remain inside of. The longer Elliot and Shane lived in the house, the larger the shadow grew. Eventually, it started eating small animals, leaving only the skin. The animals grew larger, and soon the creature was venturing out throughout the house and then the land around the house, searching for food.
No one, not even Shane, has ever truly seen the ghost, and it is possible that even the name “ghost” is a misnomer, as it seems to be something completely different and significantly more sinister.