Summer in Peru's mountains with a poor family of Quechua Indians, the Contentos-Mama, Papa, ten year old Pepito and little Rosita,- backgrounds a silver mining adventure. The main action, prompted by the visit of a young artist from Lima in search of sketchable ruins, deals with Papa Contento's prospecting in order to acquire funds for Pepito's own artistic studies. Arrangements with a nearby mine help things work out and Papa Contento is able to finance his son's future education. There is some feeling for the hard mountain life of the Indiana- as they lead their to market- as Pepito and his father watch on avalanche, as in Pepito's desire to know the distant city and his warm talks with the artist. But the author should have been more careful in checking his information on language, culture and nature:- A liama will not carry a boy Pepito's size; accents are missing on the Spanish words used in the text; Contento, is an extraordinary name for a Quechua family; and two errors in the small glossary at the back of the book are- the listing of ""good afternoon"" as instead of and ""day"" as instead of . These do a considerable job of undermining what could have been solid material for new experiences.