Claudia Stone’s novel “The Captain of Betrayal” is included in the Reluctant Regency Brides series. The protagonist of the tale is Polly Jenkins, a satisfied spinster living in Cornwall, whose quiet existence is upended when Captain James Black shows up. James, the illegitimate son of the Earl of Ludlow and a decorated military hero, is determined to wed Polly to atone for a previous transgression. James is ready to battle for her affections even though she is reluctant.