Her Smile by Carla Kelly

Sometimes people end up in the wrong place at the wrong time. Thanks to an impulsive request from Elizabeth Ann Everett, the Everett family from Omaha, Nebraska, become tourists on a vacation in newly created Yellowstone National Park. The year is 1877 and the weather is fine, . When the Nez Perce, fleeing the U.S. Army, charge into a tourist camp, pampered, wealthy Elizabeth Everett gets more than she bargains for. So do the Nez Perce.