A sweeping look at the war over the Amazon. 

The Third Bank of the River maps the human territory of one of the world's last great frontiers—and a critical battleground for human rights and the future of our planet. Grounded in rigorous first-hand reporting and in-depth research, this is a portrait of Brazil and the Amazon that is complex, bloody, and often tragic.


The vital, passionate chronicle of life and death in the world’s last Wild West. Riven through with the dramatic stories of those who live their lives on the ragged edges of the known world, this book is a must-read.”
— JON LEE ANDERSON, author of Che Guevara: A Revolutionary Life and The Fall of Baghdad
“Arnold has crafted a thrilling page-turner while delving into topics that often bypass Brazil’s mainstream media ...The Third Bank of the River’ ultimately stands out as an important book for Americans looking to better understand the glorious and troubled nation to their south — in all its complexity.
— The San Francisco Chronicle
“Arnold handles all of the narrative strands expertly and shows a keen eye for detail... The reader leaves with a newfound understanding of the diversity, complexity, and corruption to be found in the modern Amazon.”
— Publisher's Weekly