I'm a fan of this series, but admittedly I prefer Nevada and Connor over Catalina and Alessandro. Even so, this was a lot of fun to read and I was fascinated by the Abyss. What I appreciated most though, was that Andrews didn't drag out the romantic interest story line; I expected another 'Oh no! Will the couple ever find true happiness?' cliffhangers, but instead it was all wrapped up rather neatly a little past midway. Nice. This allowed me to more fully enjoy the actual plot of the story, which involved a lot of fighting and magic using, which I prefer to the romance.
As a bonus, Nevada and Connor played a part in this story, although it was much too small, and a lot of backstory was filled in about Nevada's split from the family.
All up it was a fun story I was disappointed to see come to an end. I hope there will be more with Catalina as the central character if only because I'm hugely intrigued by the Warden role and Linus.