Arthur B. Reeve's 'The Treasure-Train' is a compelling amalgamation of scientific intrigue and detective fiction that brilliantly showcases the intellectual odyssey of Professor Craig Kennedy and his confidant, Walter Jameson. Straddling the realm of pulp magazines and the nuanced tradition of detective narrative, the collection is imbued with a rich tapestry of thematic elements – from the tantalizing promise of undiscovered knowledge to the dark underbelly of human greed. Reeve's prose crackles with the electricity of early twentieth-century scientific discoveries and is steeped in the stylistic flourishes of the era's literary context, marking a significant contributory note to America's answer to the British-dominated detective genre. Arthur B. Reeve, an American mystery writer of notable recognition, was marked by his times and intellectual endeavors in crafting this paragon of detective fiction. His creation, Professor Kennedy, dubbed as 'The American Sherlock Holmes,' reflected the nation's burgeoning fascination with science and technology and can be seen as a manifestation of the zeitgeist of an era where scientific advancements began to permeate the popular consciousness. Reeve's professional engagement with the period's scientific milieu and his journalistic acumen infused his work with authenticity and an investigative sharpness that appealed to a readership hungry for cerebral and sensational fiction. 'The Treasure-Train' is recommended not only for fans of classic whodunits but also for those who revel in the intersection of science and suspense. Its place in the canon of early American mystery literature is cemented by Reeve's inventive narratives and the indelible impression of his uniquely rational and methodical sleuth. Reverberating with the thrum of the industrial age's wonders and the clever twists of a master story-weaver, Reeve's work remains an essential read for those captivated by the golden age of detective stories and the luster of forensic science's nascent allure.