Wasn't sure when I started this was for me - thinking it was maybe YA and maybe it is - but I was completely and utterly hooked within the first five pages. It's a first person narrative about a group of teenagers held in since kind of sanatorium, but the truth about why they're there is leaked subtly and slowly. Sci-Fi but low key and above all a love story. Awesome, awesome book. Have the tissues handy and be prepared to be blown away.