Earth Body Another cluster-world linked by a common (though thin) atmosphere, the Greela Cluster is much larger than [[Borka]] and much, much older. Most of the cluster planets are a few hundred miles across, and rounded into elliptical shapes. The primary vegetation in the Greela system is grass, though there are planets closer to the core that have rich forests. It is in these forests that colonies of men and elves live, and the elves of Greyspace fashion their living ships. The less-civilized races move from one part of the cluster to another on the wind, in great, ornate balloon colonies. Though larger than [[Oerth]], Greela has half the mass and a quarter of the total sentient population of the Greyspace primary