"The Blue Lights: A Detective Story" by Frederic Arnold Kummer is a detective novel written in the early 20th century. The story revolves around Richard Duvall, a retired detective who is drawn back into the world of crime-solving after a kidnapping case involving the child of a prominent banker, John Stapleton. Coupled with an engaging narrative, this book delves into themes of loyalty, the complexities of human relationships, and the lengths one will go to protect loved ones. The opening of the novel introduces Richard Duvall and his wife, Grace, who are enjoying their honeymoon in their peaceful Maryland home. Their tranquility is shattered when Duvall is urgently summoned by a representative of Stapleton to investigate the kidnapping of Stapleton's son, taken from the Bois de Boulogne in Paris. As Duvall grapples with the implications of leaving his new wife to dive back into dangerous professional waters, the narrative hints at Grace's own undercover involvement in Paris, setting up a web of intrigue and mystery. The dual perspectives of Duvall and Grace promise a gripping tale as the couple navigates threats and challenges to uncover the truth behind the abduction. (This is an automatically generated summary.)