"It's back to Corduroy Mansions--the slightly dilapidated but well-lived-in mansion block in London's hip Pimlico neighborhood--for the third installment in Alexander McCall Smith's newest popular series. There's never a dull moment for the residents of Corduroy Mansions: Berthea Snark is still at work on her scathing biography of the only loathsome Liberal Democrat member of Parliament--her own son, Oedipus; literary agents Rupert Porter and Barbara...