At once an incredible adventure narrative and a

　　penetrating biographical portrait, The River of

　　Doubt is the true story of Theodore Roosevelt's

　　harrowing exploration of one of the most

　　dangerous rivers on earth.

　　The River of Doubt-it is a black, uncharted tributary

　　of the Amazon that snakes through one of the

　　most treacherous jungles in the world. Indians

　　armed with poison-tipped arrows haunt its

　　shadows； piranhas glide through its waters；

　　boulder-strewn rapids turn the river into a roiling

　　cauldron.

　　After his humiliating election defeat in 1912,

　　Roosevelt set his sights on the most punishing

　　physical challenge he could find, the first descent

　　of an unmapped, rapids-choked tributary of the

　　Amazon. Together with his son Kermit and Brazil's

　　most famous explorer, C？ndido Mariano da Silva

　　Rondon, Roosevelt accomplished a feat so great

　　that many at the time refused to believe it. In the

　　process, he changed the map of the western