I didn't intend to finish this today but after the first 50 or so pages I got sucked in. The story was quite unlike anything I have read before and before I knew it I was at the end. I'm not sure if this is a spoiler but [spoiler]I particularty liked the idea that the effect on the people by whatever it was that caused them harm was an unfortunate side effect of the interaction and not some bogey man out to kill humankind. Probably the only thing that I didn't buy in to was that there was so much wildlife still around when it was supposed to affect them too.
I thought this was a solid, original psychological thriller and much better than the film (sorry Sandra but I still love you). It will be a tough act to follow if the author really is planning on one story for each of the five senses.