Columbia subject headings:
Harvard subject headings:
Adventure stories.
Brothers--Juvenile fiction
Conduct of life--Juvenile fiction.
Courage--Juvenile fiction
Friendship--Juvenile fiction.
Inca art--Juvenile fiction.
Incas--Juvenile fiction.
Peru--History--1829-1919--Juvenile fiction.
Treasure troves--Juvenile fiction.
Voyages and travels--Juvenile fiction
Youth--Conduct of life--Juvenile fiction.
Princeton subject headings:
Fiction.