London, 1958. Chief Superintendent Frederick Troy of Scotland Yard--newly promoted after good service during Nikita Khrushchev's visit to Britain--is not looking forward to a European trip with his older brother, Rod. Rod has decided to take his entire family on "the Grand Tour" for his fifty-first birthday: a whirlwind of restaurants, galleries, and concert halls from Paris to Florence to Vienna to Amsterdam. But in Vienna, Frederick Troy crosses...