Describes the exploration of North America in the times of explorers Christopher Columbus, Francisco Vazquez de Coronado, and Sieur de La Salle. The reader's choices reveal the historical details from the perspective of a sailor or a Taino Indian during Columbus' voyage in 1492, a Spanish adventurer or a Zuni Indian during Coronado's 1540 expedition, and a member of Sieur de La Salle's expedition down the Mississippi River in 1682.