The Hupa legend of Yimantuwinyai (Whyman) comes alive as the culture hero sails across the Pacific and returns to find his son Sunhides in the Northwest. He comes during a warming period of the Ice Age when the grass grows lush on the prairie, the salmon choke the rivers and game is plentiful. Natives hail the time travelers Phil and Tim as the sons of Thunder, and Thunderbird, spirit guide of the people. A story of wilderness adventure, romance,...