Nessa's all too human, even if she does have a rare genotype. Her life consists of wasting her meager paycheck on thrills, ignoring any strange powers she has, and hiding her genetic status from detection by anyone—especially the evil Vahrean emperor. Things change when a vicious unknown entity from deep space suddenly makes the Vahrean empire its sole target. As the attacks increase in intensity and the possibility of an alien invasion looms, Vahrean secret police locate Nessa, whom the emperor senses may be the only useful weapon against this ruthless alien aggressor...