Carolyn Wells (1862–1942) was a prolific American writer, renowned for her contributions to the mystery and children's literature genres. Born in Rahway, New Jersey, Wells showed an early propensity for literature, eventually turning her passion into a career that spanned several decades and encompassed the crafting of more than 170 books. Her foray into detective fiction was marked by a noteworthy creation, the character Fleming Stone, who became the protagonist in a popular series of detective novels. One of these mysteries, 'Who Killed Caldwell?', showcases Wells' adept skill in weaving intricate plots that captivate readers till the last page. Wells' literary style is characterized by its wit and clever twists, often injecting humor into the traditionally serious mystery genre. Her oeuvre goes beyond adult literature to include delightful poems and stories for younger audiences, displaying her versatility and ability to engage a wide range of readers. Beyond her novels, Wells compiled several humor anthologies and penned an instructional guide, 'The Technique of the Mystery Story', a testament to her deep understanding and mastery of the mystery-writing craft. Her work remains an enduring component of early American literary puzzles and continues to be of interest to scholars and enthusiasts of classic detective fiction.