The sentient artificial construct, code-named Charcoal, is one of the most advanced entities ever created. A melding of nanobot technology and aethereal energy, it is an unstoppable entity of death.
An multidimensional plane of existence that takes on the appearance of a large city.
Years ago all its residents vanished without a trace. Now something else have made it its home. And it is not alone; restless spirits walk its halls and rooms.