Welkin
From DALpedia
Virmir and his entourage of ten warriors walked down the narrow bridge connecting the two floating islands, offering a brief glance at the gray abyss on either side.
Welkin was a world of nothing but sky, containing a cluster of floating island-like rocks similar to the border worlds, but with proper physics. Many were connected by simple stone bridges, as the distance between the islands never varied. Virmir remembered when he used to play on this very bridge as a young kit. Back then the sky and abyss were blue, and the Pull nonexistent. Of course, it was still dangerous, as no one ever knew what happened to one who fell into the abyss, but a minimal threat, as even young Velkens were proficient in the art of levitation and could fly quite well.
But that of course all changed with The Curse. Gone were the cerulean skies of Welkin, replaced on all sides by deep gray and black clouds, above and below. Lighting was very common, dancing about in the distance. Thankfully it rarely drew too close. The worst by far, though was the Pull. Even the most experienced masters of self levitation were unable to fly the short distances from island to island as they had done all their lives, and disappeared into the blackness.
(Excerpted from Chapter 10)
Details
Welkin was the home world of the Velkens. Although its government was somewhat independent, it was essentially a puppet state to the Dark Empire. The Velkens were very aware of this, yet they felt indebted to the Dark Emperor who apparently saved their once beautiful world from and what was known as "The Curse", a massively expanding sun. As a result, Welkin was but a hollow shell of its former self.
Welkin was destroyed when Retan was defeated, and all the Velkens moved to the Crimson Capital on Gaian. Here they established the independent nation of New Welkin.