This is book three in the Legion series. I had not read the other books so becoming acquainted with all the characters, and there are a lot, took some time. This book is difficult as a stand alone and since I hadn’t read the others I felt I was missing out on a lot of back story. I like that all these characters had found each other and formed a kind of family. I know they are fighting against Ba’al but I wasn’t clear about what Ba’al’s goals were. Sebastian, whose family was killed by a monster demon, has powers that fit in nicely with Artemis and the team. They work together to defeat Ba’al. There are a lot things that were unclear because I didn’t read the other books like why did they all manifest powers, what is the significance of the gates, what are the goals of the demons, what is the role of the Vatican. This story doesn’t answer those questions so it was a bit confusing for me. Demons were popping in right and left. Characters were manifesting new powers without explanation. I liked this but felt it needed more explanation. Thank you to NetGalley and the publisher for giving me an ARC in exchange for a fair and honest review. All opinions expressed are my own.

Having not read either of the previous books in this series, I was hesitant to start with book 3. However, I was pleasantly surprised - the characters and universe were introduced in quick fashion without heavy exposition, and the novel progressed quickly from there. The action was tight, the characters felt like individuals, and the mix of mythology, religion and paranormal SFF seemed to work just right, leaving a Jim Butcher meets Rick Riordan taste in my mouth. You don't need much background in religion or mythology, but I imagine some knowledge couldn't hurt to help make clear some names and artifacts mentioned. This book (and likely the rest of the series) is a welcome addition to the urban fantasy genre, and I look forward to continuing to keep up with this series.

Enjoyable book. I have read all the books in the prior series and in this one. I really enjoy the dynamics between all the characters, and that despite them never having known each other, they have become a big, quirky., annoying family. The only aspect of this series that I don't like is that the reader really still doesn't know the reasons behimd any of the plot, despite it being two books in. Why the characters were awakened, why demons are on the planet, what is the prophecy? It's good to give the reader something to hold on to. Despite this, I found the book intriguing and funny, and definately look forward to the next installment.