Short Review: I liked this, especially since it was written about 45 years after the first book in the series and approximately 45 years passed in the time of the story. This is Camilla in her mid to late 60s. Most of the story is either directly telling her granddaughter about her own life or the life of her family or memories that are brought on by the stories.
There is a twist that I didn't expect at the end and that solved the book a little too neatly for my taste. Especially since the book as a whole seemed to focus on the messiness of the actual world.
I have one reservation about the book that is pretty spoiler-y. I have a discussion about it on my longer review on my blog.
The longer review is posted at http://bookwi.se/a-live-coal-in-the-sea/