When the Spaniards came to Peru they tried to find out where the treasures of the Inca's were hidden. They were cruel to the natives and made every attempt to find the treasure. Legend says that Incas leaving the area took the treasure and founded a secret city deep in the jungle. At the time of Henty's story Peru was in a state of confusion, and incessant civil war. His two heroes found adventure, but did they find treasure?.