This book is an extremely interesting book with many never before published cases and focuses on area of ufology that many have raised questions but haven't answered: "how do UFO's abduct people from public areas without being seen and leave no trace?". Mr. Hopkins and his wife both back up cases they present with new advances in the field of science and it is obvious they are trying to conduct as scientific a method to their research as possible. The only reason I gave it 4 stars instead of 5 is because before they bring up any case, they reiterate 10,000 times how the witness is credible and reliable and so forth. It got pretty monotonous and it did not give any more credibility to their research. However, with that said, I would HIGHLY HIGHLY recommend this book to any UFO enthusiasts because it talks about issues which most books just glance over.