During one expedition, a team member named Paulo Pereira visited the man’s hut and found it unoccupied. Pereira observed the man’s bows and arrows, which were s

During one expedition, a team member named Paulo Pereira visited the man’s hut and found it unoccupied. Pereira observed the man’s bows and arrows, which were still in the hut, left the man some gifts, and then began to walk away through the forest. Suddenly, he heard a voice: “Ho!” Pereira turned and saw the man standing among the trees, about fifteen yards away. Then he disappeared, vanishing into the foliage. Pereira, stunned, looked down and realized that he was standing at the lip of a spiked-bottom pitfall.... By warning him of the danger, the man had likely saved him from serious injury or death.