In this 5th book of the series, we find a more mature Cat, learning to reflect before acting given the catastrophic results in the previous two books because of her leaping before looking. She and Bones are settling into their marriage, becoming more comfortable with their relationship but still keeping the steam in it!Cat's maturing isn't just limited to her decision making but also extended to the other people in her life. She's more contemplative and is thinking beyond the obvious and is learning to work as a team with all of the talent surrounding her.In this story, she's having to deal with a rogue ghoul who is trying to use her "half-breed" origins to make other races frightened of her. Cat's display of skills, though temporarily borrowed, doesn't help matters. There's a lot more strategic thinking and execution in this story, which makes it a less stressful ride but a lot more interesting. Many of the secondary characters from the past appear as well.There are still highly emotional moments that will tug at your heartstrings and tear ducts. And, the ending is just as climatic as those in the past. Another winner in the ongoing saga of Cat and Bones.