A mystery you can genuinely solve

Design a 15-minute mystery set in [PLACE] around [NON-VIOLENT EVENT]. There are four suspects, but nobody is a stereotype or secretly omniscient. Before writing prose, build a private solution sheet with timeline, motive, opportunity, each person's true statement and exactly three clues that make the answer deducible.

Present the setting, evidence board and interviews one at a time. Wait for the reader to request a clue, question a person or make an accusation. Never move a clue after play begins. Offer optional hints in three levels, from nudge to explicit connection. When the reader chooses, reveal the solution with a line-by-line explanation of the clues and a fairness audit.

Return the game-master setup and the opening scene, but keep the solution sealed until asked. Do not rely on violence, graphic harm or a last-minute secret twin.