Ring Island (The Final Sanctuary)
"As the yellow haze of the Honeycomb factories fades, the air on Ring Island suddenly becomes crisp and clean. Here, the grass is still a vibrant, deep blue, and the slimes bounce with a wild energy found nowhere else. It is the heart of the Range—and the one place CEO Vesper cannot allow to exist. To her, it is a 'system error' that must be paved over."