The Aeupheur lands on the floating Sky City. Aboard is the stowaway, Aldber. He is desperately searching for someone, hoping to unravel hidden mysteries. A chance encounter will send him on an unexpected path.

Far away, centauri forces return to their sacred lands. They have the grim news of their fallen leader. The mighty successor, Raining Fire, will enact his first decree—a personal act of vengeance.

Grand Master Vivid must unite the Galardros, tribal leaders, and the Sky People for a historic meeting to make a decisive plan. But old rivalries and unhealed wounds could threaten their efforts. Failing to overcome their differences will be their downfall.