** spoiler alert ** 
 I did like the beginning of this book...fascinating subject. I really liked and rooted for the ghosts and their happiness...there is only one thing that bothered me and it's a major spoiler so I don't know how to explain it. Let's just say...the actions of the ghosts when they are in their host's bodies...well, is pretty insane and they leave the hosts with something to deal with when they leave, and I thought it a bit reckless and it really bothered me. In my opinion, worth the read, but beware...a lot of sex for a YA novel.