Allegiance of Honor by Nalini Singh
Very well written and although it was about all the previous couples, the book had a good storyline - our heroes tried to locate a kidnapped lady shifter and had to protect the first psy-changeling child. At the same time they expected another first - pupcubs were ready to be born.
It was great to visit the characters and read about their lives. I was a bit disappointed that Lara and Walker had such a small part in it but I'll survive. Nalini Singh is definitely one of my favourite authors. She knows how to write an exciting emotional story.