After an unsuccessful attempt to rescue Jan Smuga from captivity of the Camp Indians, Tomek and his comrades hastily prepare a new rescue expedition. Having sacrificed their freedom and remained in the Indian settlement for the sake of their friends’ escape, Smuga and Captain Novitsky promised the young man to meet him in a couple of months near the northern border of Bolivia. But it seems that fate itself is against their reunion: first, the Campa uprising in Montagna forced Vilmovsky Jr. and the rest of the group to abandon the short route, and then the revolution in Bolivia confused their cards. In order to get to the appointed place as quickly as possible, Tomek decides to lead an expedition through the Gran Chaco - a mysterious region that has remained unexplored for a long time. According to legend, free Indian tribes live there and disaster awaits any white man who dares to invade their lands... But can Tomek retreat when the lives of people dear to him are at stake? On the stories about the fearless Tomek Wilmovsky, from the pen of a Polish writer Alfred Shklyarsky, more than one generation of young book lovers has grown up. Here is a new translation of the eighth novel from this series - “Tomek in the Gran Chaco”, which has been supplemented with interesting and informative popular science references. Wonderful illustrations for the book were created by the artist Vladimir Kanivets. The publishing design is preserved in PDF A4 format.