The Children of the Zuni Bird, enlightened by the mystical strength of the Song, set out on a dangerous quest - a quest to save humanity from total annihilation.

For the Unmen of Lamassa whose mirror-world drew life from the chaos of the mind, it means final confrontation with their powers of destruction.

For One-Eye, the mutual messiah, the new energy means the death of his Dream and the terrible realization of his ultimate self. For Tah Ti the Boaster, survival means enduring the dual traps of space and time-warp, penetrating deep into the past when the original conflict began. And for the whole of humanity, the future depends on recognizing the real enemy, coming face-to-face with themselves, eye-to-eye with the Enemy Within...