This is the second book, it follows 'Fallen' by Lauren Kate. The story is of Angels, Demons, past lives... it is an exciting read and one that continues the story ending from book 1, it is no let down at all, i prefered this one to the first and the first was brilliant!
The only downside of this genre seems to be the amount of books that are part of a series and so it leaves you with a real cliffhanger in the end, but at least we get more of the characters then and the story can be more complex than some.
I don't want to leave spoilers so i will not say too much about plot, but various characters from book 1 return and poor Luce is more confused than ever, it's not too confusing for the reader though!
If you liked Twilight, House of Night, Hush Hush, you are most likely to enjoy this, but please read 'Fallen' first!