People of the Nightland (First North Americans) - Tapa dura

It has been a thousand years since Wolf Dreamer led his people up through the dark hole in the ice to a rich, untouched continent bursting with game. But the world has changed. Most of the magnificent animals are gone, and the last of the great glaciers is melting, forming a huge freshwater lake in the middle of the world. Over the centuries, the People of the Wolf have split into two clans. The People of the Nightland live in the honeycomb of Ice caves that skirt the glacier. The People of the Sunpath live Inside lodges to the south, hunting the few remaining mammoths, bison, giant sloths, and short-faced bear. When a young orphaned boy named Silvertip receives a vision from Wolf Dreamer that their world is about to end, no one believes him - no one except a jaded war chief and a little girl. Led by Silvertip's dream, the three of them must convince both clans to leave the land of their ancestors and flee eastward as fast as they can before the Ice Giants destroy the world. This is the sweeping saga of a visionary boy who led his people out of the path of one of the worst catastrophes in the history of the world, and the brave little girl who loved him enough to believe in his dream.

KATHLEEN O'NEAL GEAR is a former state historian and archaeologist for Wyoming, Kansas, and Nebraska for the U.S. Department of the Interior. She has twice received the federal government's Special Achievement Award for "outstanding management" of our nation's cultural heritage. W. MICHAEL GEAR, who holds a master's degree in archaeology, has worked as a professional archaeologist since 1978. He is currently principal investigator for Wind River Archaeological Consultants. The Gears, whose First North American Series hit the international as well as "USA Today" bestseller lists, live in Thermopolis, Wyoming.