I really enjoy this series. This book give you a look into the lives of many of the secondary characters and even some new ones. You also get to see a different side to some of the main characters you've know for a long time.
I loved seeing Raphael with Jessamy. He is a completely different character around someone who is much older and helped raise him than he is with anyone else. To see Jessamy and Galen come together was touching. She is such a kind heart.
I also really liked seeing more of Deacon and Sara. They are a great pair. It was a lot of fun seeing them come together
All the stories are great, but these two were my favorite. While, I think you could read this without have read the rest of the series, I think you would appreciate it much more if you have. This is true for even the stories that take place before the Angel's Blood.