The Adventure of the Three Students by Arthur Conan Doyle

Holmes is called to a university where an exam paper has been tampered with, and three students fall under suspicion. Using subtle observation, he identifies the culprit through clues such as a broken pencil lead and ink smudges. The plot is contained and intellectual, emphasizing logic and fairness. It’s a quieter case, with no crime beyond dishonesty. A tightly crafted tale of academic intrigue and methodical deduction.