I had a hard time rating this book. On the one hand, it was easy to read and quite gripping, with funny dialogue and good chemistry between the leads. On the other hand, this is such a shameless rip-off of Twilight that I was constantly comparing the two books. I just could't help it. The plot is basically the same and so are the characters. Besides a Bella (Katy) and an Edward (Daemon), there is also an Alice (Dee), a Rosalie (Ash) and a Carlisle (Matthew), two Katy's human girl friends, and a group of evil vampires aliens on the hunt for our heroine, who has a trace on her. How refreshing, lol! 
 And Katy starts with gray eyes in the beginning, but somehow ends up with warm brown somewhere in the middle. 
 And I could go on and on about the similarities. 
 So if you want to read a good piece of Twilight fan fiction, try this one out. If you are looking for something original, don't.