In the intricate tapestry of Carolyn Wells's 'Who Killed Caldwell?', readers are ushered into the deceptively tranquil world of Irving Caldwell and his kin. Constructed with the deft literary craftsmanship of the golden age of mysteries, Wells choreographs a dance of facades wherein each family member's cheerful exterior masks a labyrinth of secrets. The novel, embroidered with twists characteristic of early 20th-century whodunits, is an exploration of the dichotomies of outward appearances against hidden truths. Scrupulously intertwining the domestic sphere with a foreboding sense of dread, Wells crafts a narrative steeped in the traditions of genre masters, whilst adding layers of psychological complexity to her characters' portrayals. Carolyn Wells, a prolific author and poet, was widely recognized for her contributions to the mystery genre, particularly during the first half of the 20th century. Possessing a keen understanding of human nature and societal norms of her time, Wells was adept at creating atmospheres ripe with intrigue and suspense. Her personal predilection for puzzles and fascination with the human psyche provided the perfect substrate for 'Who Killed Caldwell?' – a novel that not only seeks to entertain but also to dissect the intricate web of family dynamics and the lengths to which individuals will go to protect their secrets. 'Who Killed Caldwell?' is recommended with enthusiasm to connoisseurs of classic mystery and literary aficionados alike. It invites readers into a realm where the clarity of justice and the shadows of enigma engage in a perpetual waltz. Critically, the book promises more than just a quest to uncover the perpetrator; it offers a journey through the human condition, challenging one's perceptions of innocence and guilt. Wells' novel, a hidden gem in the canon of detective fiction, is a testament to the enduring allure of a well-crafted mystery.