This book was okay. I felt that Charlie was a very interesting character, and the fact that he had a completely off the grid lifestyle, while the other boy, David Sun lived the wildly rich and spoiled life directly across the lake from him held some promise. I even enjoyed "The Companion" idea as a way to get kids who are disassociating from their peers and life around them thanks to all the technology that has entered into the world to form healthier relationships. Interesting ideas in the story, but in some ways I feel it ended up being incomplete in some ways. I was hoping to learn more about what happened with Rose, and Sakoro, and Dr. Roger. I feel there are some loose ends that I would have loved to have tied up, but it was still a decent read overall.