I was afraid it was going to be another vampires, werewolves, lovesick human kind of book for teenagers but it wasn't. It has its own rather interesting vampire mythology, and so far no werewolves. 
 Rose was introduced as a reckless teen, I really hope that she'll grow into a great adult guardian in the next books, she has a lot of potential. As do a number of other characters. 
 Can't wait to read more.