Juliane Koepcke was flying over the Peruvian rainforest with her mother when her plane was hit by lightning. She survived a two-mile fall and found herself alone in the jungle, just 17. "After about 10 minutes, I saw a very bright light on the outer engine on the left. My mother said very calmly: "That is the end, it's all over." Those were the last words I ever heard from her."