Discusses the prehistoric peoples who occupied the Americas, describing the civilizations of such advanced cultures as the Incas, Mayas, and the Aztecs, and the technical achievements of various other Native American groups.

"A viral disease called 'the wickedness' plagues the world, and sixteen-year-olds Astrid and Natalie are two of the only people immune. The girls live in separate, isolated communities, but recent encounters with wicked people link their stories in unexpected ways"--