I have now read all of Faye Kellerman's mysteries, and although I enjoyed every one, this is unquestionably her best in my opinion. The complexity of the story rivals that of a P.D. James, but the setting is familiarly California. I learned a great deal about Judaism and the fascinating world of diamond brokerage, but more importantly about the many roles that religion plays in our lives. It is, indeed, a "sanctuary," but can just as easily become a prison. Kellerman's characters are, as always, believeable and richly developed. I never tire of her books!