Deep in the forests of South America, there is a lake fabled to be filled with gold. El Dorado, the leader of the Musicas, is said to have painted himself gold, floated out onto Lake Guatavita, and tossed treasure into the lake to appease ancient gods. To this day, few people have ever seen the shape of the bottom of the Lake. Benjamin Lewis is here to search the bottom and figure out the shape of things. Will you help him?