Honestly, I couldn't make it through to the end of the book. I rarely put down books, but I simply could not continue reading it. This book differed from the previous two in that it suddenly added Tobias' point of view. I have no problem with a change in format so long as it makes sense. This change did not. There was no clarity or distinction between the voices of the characters and I continued to forget which character I was reading. I also found the lack of scientific research frustrating. Maybe one day I can come back and finish this book. I doubt it.