15 Seconds - Andrew Gross The main mystery behind this book wasn't too hard to figure out. I mean the author basically spells it out for you way before the actual reveal. With that being said I have to say that the book was still interesting enough to hold my attention throughout. I felt the characters were believeable and that there was plenty of great action. My favorite part of the book was definitely the action towards the end. Overall this was a good book and I would recommend it to others.