Brak Thaa was a kelrite: an unnatural planetary formation where the mantle’s polarity mimicked the core. The rocky chunks were rejected by magnetism yet pulled by gravity into a loose orbit. From within the phenomenon appeared an inverted Earth, where the sun was at the lowest point and the sea in the sky. Reflections created a wavy net of light on the outer side of the islands. The core cast long shadows like an ocean sunset.

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He wiped his face; moisture clung to him like a child. His glasses darkened, reacting to bright golden light radiating from the exposed core at the bottom of the world. Contrasty meteorites covered on all sides by tightly rooted jungle floated through the sky. The large-leafed trees and ferns shared a green coloration but shimmered blue in the light. From these heavenly islands, great waterfalls cascaded down one to another, island to island in lengthy chains, until eventually evaporating in the heat of the molten core. The geothermal energy sent the water up as great geysers of steam to cool in the upper atmosphere into an ocean in the sky. There it froze as an icy cocoon at the farthest reaches near space as the outer hydroshell, protecting the delicate ecosystem. The inner layer warmed and rained down upon the islands, thus sustaining the water cycle.

-Refract

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Brak Thaa serves as an important location in Rainbows Wane. It's unique balancing of the surreality phenomenon leads Altnexxis to feed there to ward off schism decay. Later in the book the party returns there to find Oth has laid a trap in Mayne and Alouve's ship, which was abandoned there.

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