Arthur O. Friel's tales of the unexplored Amazon jungle made him one of the pulp magazine Adventure's most popular authors. This collection includes his first ten stories from 1919-20. The engrossing, suspenseful, and often violent, stories follow two rubber industry workers as they venture into the wildest, most inhospitable jungles on Earth. This is pulp adventure at its best. Also included is an in-depth examination of Arthur O. Friel, an enigmatic real-life explorer, and the roots of his Amazon stories.

Volume 2 presents the second ten adventures of Friel's Amazon rubber industry workers, Pedro and Lourenco, as they encounter strange characters and perilous situations in the unexplored Amazon jungle. Whether battling headhunters, or being turned into sex slaves by a tribe of wild women, the atmosphere is steamy and the suspense unrelenting. From the great pulp magazine, Adventure (1920-21).

This collection of literature attempts to compile many of the classic works that have stood the test of time and offer them at a reduced, affordable price, in an attractive volume so that everyone can enjoy them.