This city has been empty for so long, far longer than it was full. Yet its prime was truly wondrous, short lived though it was - a city built by the hands of man under the guidance of something higher.
Its towers sparkled, machines filled its streets, and its people harvested miracles from the rivers of violet that flowed beneath its skin. It was a marvel. The pinnacle of technological advancement on this planet. It is here where the System was born, and the prototype was forged around it.
But those halcyon days are gone. Now all it offers you is some small protection against the shadows that lurk outside its walls, and even that will prove fleeting.
Make use of its skeleton, but do not rely on it. The shadows are seeping through its shield, and a different threat stalks within.