Fifty thousand years after Kenbu and his companions defeated the ultimate evil, the world of Alnam is still recovering from the cataclysm that event left behind. The recovery has been slow. Now the Maya Duchy's leader has found an ancient energy source left over from that era and is converting it into poisonous gas as an instrument of conquest. Kusumida — a fourteen-year-old orphan caught in the path of the Duke's campaign — becomes involved in the effort to stop it before the gas does to the world what the original cataclysm almost did.