After journeying to an unfamiliar land where air is nearly unbreathable and light stings like shards of glass, Edgar must navigate the deadly forests--full of creatures far more frightening than anything he has seen on Atherton--and join the child workforce of Silo #7, the site where Dr. Harding (the mad maker of Atherton) was raised. In the final thrilling chapter of this epic triology, we meet an engaging new cast of characters and Dr. Harding's ultimate plan comes together in an incredibly satisfying conclusion.