3.5 Stars:What worked for me: Medical thriller - I liked the idea of a neurosurgeon finding the cure for Alzheimer's disease. And the idea of using stem cells was brilliant. It was a new, fresh idea. I also enjoyed the fact that the reader gets to learn some history on stem cells. My knowledge on that subject is limited, so it was very interesting finding out more about the subject. Multiple POVs - Like I said in the past, multiple characters and their POV make me see the big picture and to see the plots in a lot more detail than usually. So I loved that every major character in this boom got to "share" his side of the story. Pacing - This book is really fast-paced. I didn't get bored reading it, there wasn't a moment where the plot stopped developing or where the action wasn't moving forward. It's not too fast that you lose some important detail, it's just the right kind of fast, if that makes sense. What didn't work for me: Because there were multiple POVs, you know from the very start who, why, when and how is trying to intimidate Jon Ritter. That made the suspense sort of fade for me. It made me anticipate more than I felt comfortable. I would've wanted more mystery surrounding the person who tried to make Jon Ritter not continue with his research. I liked this book and I'm sure I would've liked it even more had it not been for the fact that we find out from the very start who is doing what. Even so, the story was great and it kept me reading and it kept me wanting to know how the book ended. So if you're a thriller fan, you should check this book out :)