Hypernova Series: Mystery Of Planet Creyenia

When Finn was twelve years old, his elder brother, Ron, disappeared without a trace. Five years later he's back and needs Finn's help in an astronomical way. Ron has become a member of the Citadel, a collection of the universes, smartest extraterrestrial beings who voyage between worlds and galaxies saving lives. Ron is having trouble finding a teammate, and thinks his brother is the perfect fit. Finn accepts the role for personal reasons and is thrown into a catastrophic world filled with ...