It was okay, definitely not the best of the series. 
 The plot was interesting, if a tad weird. It started out infuriating, turned brilliant, then devolved into downright silly. (view spoiler)[(Like that time machine straight out of an H.G. Wells novel, like, wat? I thought this was a horror/supernatural book???) (hide spoiler)] 
 Also, Annamaria is single-handedly the most annoying character I've ever had the misfortune of reading about. (Her evasiveness and inability to answer ANYTHING is not clever or mysterious, and it does not make me want to read the next book to find out the answers. It just makes me mad). 
 If Annamaria had died in this book I would have given it five stars.