The Treasure of the Sierra Madre
The Treasure of the Sierra Madre (German: Der Schatz der Sierra Madre) is a 1927 adventure novel by German author B. Traven, whose identity remains unknown. In the book, two destitute American men in Mexico of the 1920s join an older American prospector in a search for gold.
Source: Wikipedia — The Treasure of the Sierra Madre (CC BY-SA 4.0)