I loved this book! Of the 100-plus books I've read on kindle, this is right up there with the best. I've had a debate with friends about whether books or films are more scary. I maintain that psychological stuff can be more scary in a book because it relies more on your imagination, but books can't make you jump - this book came very close! If it were a film, it would be the kind you watch through your fingers! It's very well written and pulls you in almost from the beginning - I agree with the other reviewer that the main character is a little annoying at first. I really cared about the characters and towards the end kept forgetting to breathe as I was willing them not to do things and to GET OUT NOW!
Some thrillers are excellent, but maybe not actually enjoyable - this was both. I have a good 200 books waiting to be read so never read one twice - but this one is tempting! I don't know if this is one of those rare occurences where plot, characters and author come together to create magic, but I will be buying her other book and hope it's as good. In the meantime, I've been recommending this one to anyone who will listen!