I enjoyed this book even though it is being called YA novel (not by the author himself though)and think that is because the main characters are High School teenagers. I can remember my school days and really nothing much has changed so do not be put off if you are older. If you like action packed novels then you will like this. I do not want to give to much away but it has scary bits, exciting bits and I admit I could not put it down after first couple of chapters. Skye is a likeable heroine although she has more guts than I had at her age!Matthew Reilly fans will recognise his normal fast paced style in this book so well worth a read-a good one for a plane journey.It is also about how wealth affects people so has a bit of a moral in the story too.Good writing if you like a bit of fantasy in your books.