Archaeologist Leah Andrews stumbles upon something in New Mexico: inside a dark cavern lies an undiscovered, Native American cliff dwelling abandoned for eight-hundred years. Ancient human remains—slaughtered in a long-ago massacre—cover the cavern floor and several brilliantly colored granite crystals. The rare gems are native to only one place on earth: a frozen mountain range in central Antarctica. Could Native Americans have traveled to the icy continent of Antarctica eight-hundred years before the first known human exploration? Free on Kindle.