“A Study in Scarlet,” part of the esteemed Penguin Classics collection, marks the debut of Arthur Conan Doyle’s legendary detective, Sherlock Holmes. This groundbreaking work of detective fiction introduces readers to the brilliant yet eccentric Holmes and his steadfast companion, Dr. John Watson. Together, they unravel a perplexing murder mystery that spans from the foggy streets of London to the wild landscapes of the American West. With themes of justice, logic, and the complexities of human nature, this novel, featuring an insightful introduction and notes by notable scholars, invites readers into the captivating world of Victorian-era crime-solving.