Cloud World

Heliopolis. A citadel divided into five layers, every citizen sure of their place and purpose. But there is one uncertainty that haunts all Heliopolitans. What lies beneath the thick ocean of cloud? A vast abyss? The fiery realm of the gods? Fourteen-year-old Marcus is about to find out. When his father fails to return from a diplomatic mission, Marcus joins an expedition across the cloudscape in search of him. But he discovers too late that danger lies closer to home - somebody wants him dead. And when his airship is attacked, Marcus is plunged into a terrifying new world beneath the clouds.