Memoirs, Native American, Native American Studies 

Rough translation from cover of book:
"When two worlds collide, a family faces the critical challenge. a true story. Steve Saint was only five years old when his father was killed by Huaorani warriors, men of a culture, the wildest ever known. But in a story almost too amazing to be true, Steve eventually got to know, and even love, those who speared his father.
Decades later Steve and his family take the difficult decision to leave a comfortable life in the United States and regress into the jungle to live among the Huaorani.
Steve takes us on an adventure story that is part Indiana Jones, part daily diary, part romance and part spiritual. Struggling to integrate their two different worlds, Steve well knows the hidden secrets about the death of his father. A measured accepting of the details of that day, he must face a new challenge: 'to insure'(?) the Huaorani to survive without him.
This story also served as inspiration for a major film."
Google Translate for feedback - from Amzon