Even though I know the ending and the wrap up, every time I read this book it still amazes me and catches me off guard. Agatha Christie is just so flippin' amazing!! She just reels you in and keeps you in the dark, wondering what will happen next with each turn of the page. This book definitely has the shock factor and once you finish it, you will just have to sit there for a while and think about what you read, because it will take you a while to wrap your head around the craziness. I recommend this book for anyone who loves thrillers, mysteries or someone who wants a quick read, because it won't take long to finish it, either because it's short or because you can't help but keep reading it.