Dr. Ardy Sixkiller Clarke, author of Encounters With Star People, vowed as a teenager to follow in the footsteps of two 19th-century explorers, John L. Stephens and Frederick Catherwood, who brought the ancient Maya cities to the world's attention. Dr. Clarke set out on a seven-year adventure (from 2003 through 2010) through Belize, Honduras, Guatemala, and Mexico, collecting stories of encounters, sky gods, giants, little people, and aliens...