The Adventure of the Retired Colourman by Arthur Conan Doyle

An art dealer disappears, and Holmes suspects foul play involving his jealous, manipulative employer—a former army man with a sharp temper. With Watson’s help, Holmes uncovers a hidden body and the truth about the dealer’s fate. The plot is methodical, involving tracking, timing, and psychological insight. It’s a classic story of greed, cover-up, and cold-blooded crime. Holmes is both calculating and quietly scornful in pursuing justice.