I won't spoil it for anyone who enjoys this series and hasn't read this one yet. All I will say is that I consistently like Grafton's books and this one was a very good read, a blend of the mystery Kinsey is hired to investigate and the mystery of Kinsey's relatives and her childhood.
Some book endings, sadly, are permanent. I just read that Robert B. Parker died. He was the author of three detective series featuring Sunny Randall, Jesse Stone and my favorite, the Spenser series. He also wrote numerous books that were separate from these mysteries. He will be greatly missed.