Incas
Free to read here, from Project Gutenberg.
The travels of Pedro de Cieza de Léon; part 2
Inca Land: Explorations in the Highlands of Peru
History of the Incas
History of the Conquest of Peru
Apu Ollantay: A Drama of the Time of the Incas
History of the Conquest of Peru
Suma y narracion de los Incas, que los indios llamaron Capaccuna, que fueron señores de la ciudad del Cuzco y de todo lo á ella subjeto
The Virgin of the Sun
The Treasure of the Incas: A Story of Adventure in Peru
Under the Andes
Harry Escombe: A Tale of Adventure in Peru
The virgin of the sun
The Mystery Boys and the Inca Gold
The Mentor: The Incas, vol. 6, num. 3, Serial No. 151, March 15, 1918
Real Gold: A Story of Adventure
Gold of the Gods