"A flashing black cloud rolled across the Nebraska prairie. Gaining speed, it rushed on the town. Dave never saw the storm coming." It is May 1939. David Fletcher is fourteen years old and living in dustbowl Nebraska. He and his buddy Ben Watson are determined to become archaeologists. Their ambitions are jump-started when the mysterious Mr. Daley arrives in their small town, hot on the trail of strange, giant arrowheads discovered by a gang of road...