Most people assume that the world has been explored and true adventure is dead: This book is one man’s rebuttal. Explorer and conservationist Paul Rosolie shares his incredible life in the Amazon rainforest—and what we can learn from the people fighting to protect it.

“On behalf of the forests that I love, thank you, Paul, for writing this book.”—Jane Goodall

Deep in the Peruvian jungle, there exists a corner of the world that remains untouched—one teeming with giant anacondas, where the haunting cries of howler monkeys send brightly colored macaws shooting across the canopy. It’s an ecosystem of stupendous biodiversity, uncontacted tribes, and adventures that most people don’t even dare to dream of.

When he first set foot in the jungle, Rosolie was a dyslexic kid from Brooklyn who struggled to graduate from high school but had an undeniable calling to the outdoors. He was lucky enough to meet the indigenous naturalist Juan Julio Durand, and together, over two decades, they have created Junglekeepers, an organization that has found a way to halt deforestation and protect more than 110,000 acres—inspiring millions along the way by documenting their progress online. But this work takes grit, and years in, Rosolie and Durand are past their “barefoot machete days,” grappling with chain saws, massive fires, illegal miners, and the worst of humanity. Here, Rosolie brings you up close and personal with one of the wildest places on the planet and tells the incredible story of “first contact” with one of the most mysterious uncontacted tribes on Earth: the Mashco Piro.

This book is about the profound power of saying yes: yes to one’s calling, yes to sticking with your dream when it comes at a high cost, and yes to taking a stand to save what might otherwise be gone in a generation. It’s a story of calling, connectedness, and hope.