I wanted to really love this book, and I didn't right up until the last 15% or so. What's not to love? Cults, a shady corporation, a book that is part horror, part sci-fi, part crime thriller. Everything worked wonderfully. Until the end. There are so many loose ends left untied and the book ended so quickly it made my head spin. I was prepared to give it 5 stars, but the ending knocked it down to 3.5, rounded up.