Things look grim for Francis and his adopted family, Lottie and Billy. Without horses, water, or food, they're alone in a prairie wasteland, with the dreaded Comanchero outlaws in pursuit. Death can strike at any moment -- but so can good fortune. When they stumble upon an ancient treasure, it takes teamwork, courage, and wit to hold on to it. By sticking together, Francis and his family wind up rich beyond their wildest dreams, and ready to head west to find Francis's parents on the Oregon Trail.