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.