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I think I may have enjoyed this a bit more if I read it but I listened to it on CD and the guy kind of sucked who was the reader. He isnt good with voices and the ones he picked really didnt appeal to me the way you would match the voice with the description and not just with some which happens but with all. I felt the story itself was a bit neat that there were several scenes playing out at once and you got a piece of each as you went along however this also made it a bit boring and slow moving as well. I do not recommend this book to other people who enjoy zombie/dooms day type books but the science part of this book was pretty good and on point.