A town archive discovers that every map from one decade omits the same house.
18 Mystery Writing Prompts Prompts
These prompts create a starting constraint, question, or situation. Use one as written, combine two, or change the audience, setting, objective, or limitation to make a new exercise.
A teacher finds identical essays submitted ten years apart by students who never met.
A restaurant receives a five-star review describing a private room it does not have.
A train arrives with one carriage listed on no timetable and one passenger who refuses to leave it.
An antique camera contains undeveloped film showing the current owner as a child.
A charity audit reveals donations from a company that does not legally exist.
A botanist identifies pollen at a crime scene from a plant thought extinct locally.
A journalist receives corrections to an article before the first draft is written.
A memorial plaque contains the name of someone still alive, installed decades earlier.
A locked-room theft leaves nothing missing until the owner notices one object has been replaced with an exact copy.
A language teacher recognizes a rare mistake appearing in anonymous letters across three countries.
A ferry manifest includes a passenger whose ticket was refunded before departure.
A family recipe book contains coded dates that match unresolved disappearances.
A city inspector finds a basement on original plans that no current building entrance can reach.
An obituary appears with a photograph of the investigator instead of the deceased.
A chess club’s old game records contain moves spelling out addresses.
A town’s lost-and-found receives the same umbrella after every major storm.
A software log shows an account authenticating from a building demolished before the system existed.