"On Her Majesty's Frightfully Secret Service" by Rhys Bowen (Berkley, 304 pages, in stores) If you like “Downton Abbey” or 1930s Charlie Chan detective movies or just jolly good British idiomatic speech in general, you'll love the characters, setting, tone and dialogue in Rhys Bowen's "Royal Spyness" cozy mystery series.Read more on NewsOK.com