sentences:  In the middle of the night, on the most remote dirt road, in the middle of the vast altiplano, he quickly changed his plan; insisting the driver stop the truck and let him off.The only way out of this situation, he reasoned, was to reach the source of the Amazon by traversing the continental divide, then walk down into the towns populating the Colca Canyon beyond.Caganoff had little food with him as he was going to buy supplies in Caylloma.