The supposedly extinct builders of this castle, a race of technologically godlike beings, had a brilliant method of keeping a low profile on worlds they researched- the imitation of local architectures, covering steel, wire and computer with seemingly ancient stone and wood.

This data relay station in the outer regions of Quetzalcoatl's Mirror could pass for a human-built castle, were it not for the fact that it is hovering on a piece of rock within a nebula quite hostile to human life.