Well that was great. I had a bit of trouble getting into the story in the beginning, but that might be due to the fact that I started reading it very late at night. Once I properly got into it though, I was hooked. Parts of the mystery can be guessed, others can't, and in any case it is very well handled, with a great mix of action, emotion and, well... pure confusion ! 
 Now let's just hope that the sequel keeps it up, which might not be that easy...