Let me start by saying that I enjoy the House of Night series dearly. So I was glad to see a novella on the background of Dragon Lankford. And the book serves that purpose. Sadly, besides doing that and a interesting element with a creature in the book I really didn't find this book that great.
Dragon and Anastasia are just not interesting enough to me to carry a novella. Which makes me glad their not main characters in the main series.
If you enjoy House of Night and want to know all about the characters, pick this up. If not, skip it.