From the author of INTO THE SILENCE, winner of the Samuel Johnson Prize for Non-Fiction

In 1941, Richard Evans Schultes took a leave of absence from Harvard University and disappeared into the Northern Amazon of Colombia.

The worlds leading authority on the hallucinogens and medicinal plants of the region, he returned after twelve years of travelling through South America in a dug-out canoe, mapping uncharted rivers, living among local tribes and documenting the knowledge of shamans.

Thirty years later, his student Wade Davis landed in Bogota to follow in his mentors footsteps so creating an epic tale of undaunted adventure, a compelling work of natural history and a testament to the spirit of scientific exploration.

An Explorer-in-Residence at the National Geographic Society, Wade Davis holds degrees in anthropology and biology and received his Ph.D. in ethnobotany, all from Harvard University. Davis is the author of 15 books includingThe Serpent and the Rainbow,One River, andThe Wayfinders.His many film credits includeLight at the Edge of the World, an eight-hour documentary series produced for the National Geographic Channel. In 2009 he received the Gold Medal from the Royal Canadian Geographical Society for his contributions to anthropology and conservation, and he is the 2011 recipient of the Explorers Medal, the highest award of the Explorers' Club, and the 2012 David Fairchild Medal for Plant Exploration, the most prestigious prize for botanical exploration.

From the author of INTO THE SILENCE, the winner of the Samuel Johnson Prize 2012, comes an epic tale of adventure in the Amazon rainforest.