The book is great. I read it in 2 days and it kept me awake: both for reading and fearing. I liked the plot and the characters although they are a bit too-stereotypical. It kept me up until the end, but I think the end, the 'wrap-up' is a bit far from truth. It could have been a simpler ending, it is just too many coincidences.. But overall, I liked the book and I plan to buy the other books by Jean-Christophe Grange.