I can't finish this. If this book has gone through the hands of an editor I'll be very surprised. If it has the editor needs to be fired. The writing was juvenile and stilted, therefore preventing the story to flow. It got worse as the story progressed; useless details were thrown at the reader while at the same time having serious pacing issues. We meet the main character Kara running towards her own presentation when she gets hit by a bus, goes to Horizon and then becomes one of the guardian angels, in short GA (yes, I was rolling my eyes at that). Immediately after that Kara is sent on her very first mission with her "teacher" David, a snarky bastard who has no respect for authority. We are told nothing of Kara except that she was on her way to a presentation when she died, that she has a best friend and that her mother can see demons (which is why she thought of her mother as being insane). Because of that it's impossible to connect with Kara, especially because she doesn't waste a moment's breath about her friends and family if they might miss her nor does she really grieve about losing her life. She even goes so far as to say that she "should be happy to be here" in Horizon. Come again? Furthermore the book suffers from serious pacing issues as we are immediately thrown into the action without details about the workings of Horizon. And no one would send a guardian angel on a mission without giving them proper instructions first; lives/souls are at stake after all!