Years ago, Mankind fought against the hated slan race in the fierce Slan Wars. The result was the extermination of almost all slans, and the establishment of a world-wide police state. But slan Jommy Cross had escaped extermination and was now living in constant fear in the world of cruel humans. Jommy was determined to avoid detection, track down other surviving slans, and with them, the mystery of the slans' strange existence and superiority.