Summary

Chapter 6 is divided into three parts. In the first part, Lil and Summer take Billy to Yellowstone National Park. They get food for lunch and find themselves in a traffic jam caused by tourist who stop to observe any form of wildlife they see. When one lady stops in take a selfie with an American bison, Billy saves the protesting woman from a impending attacking by dragging her away the animal.

In the second part, the trio visits some waterfalls. There are signs warning visitors not to climb over the rails and forbidding drones. Billy wonders whether his father comes that far up the river for his surveillance work. On the way home, they stop to eat. When they return to the house, Billy calls Dennis and leaves a message. Then he calls his mother. He tells her about Dennis and the drone...