I have to admit, I was pleasantly surprised by this book. I have enjoyed this genre of book before but I was worried that it might be a bit too heavy going stuff for me. But I really really enjoyed it. It kept me guessing, got me thoroughly creeped out (in a good way) as I read it home alone at night, and I felt that it was just written in a very coherent, well researched way. Also, everything that happened was important and happened for a reason, which is a nice change from random events thrown in as the writer became a bit lost. All in all, I would highly recommend this book and will definitely be passing it on to my dad to read next.