Is this paper for a audience or a literary/creative one?
For the uninitiated: In The Lord of the Rings: The Fellowship of the Ring (the 2002 Sierra game, not the EA tie-in), there is a notorious level set in the Mines of Moria. Players noticed something strange in the geometry of the "Twenty-First Hall." Behind a specific broken pillar—one that requires a borderline glitchy jump to reach—the textures of the wall flicker. If you clip through, you fall into a massive, unfinished "void space."
As they ventured deeper into the city, the company encountered signs of a terrible presence: a pool of water, once clear, now seemed to have been polluted by some dark force; the skeletons of dwarves, their armor torn and broken, lay strewn about; and the walls, once adorned with intricate carvings, now bore strange, ominous symbols.