Mystery & Crime writing prompt

Secrets in the Snowbound Library

In a small mountain town isolated by a snowstorm, the local sheriff discovers a series of coded messages hidden in library books. Each code deciphers to reveal a resident’s darkest secret. When a sudden death occurs, the sheriff must unravel if the secrets and the coded messages are mere coincidences or part of a sinister plot.

Suggested length: A short story: 1,500 to 5,000 words, or flash fiction under 1,000

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Three ways to take this prompt somewhere nobody else will.

  1. Start with the confession, and make the story about why it's false.
  2. Make the detective wrong at the midpoint, for a good reason.
  3. End with the solution in a single line of dialogue.

Writing mystery books

Who did it? You get every clue and a fair shot at the answer.

A mystery opens with a puzzle, usually a death, and closes with the solution. In between, a detective (professional or not) gathers clues and suspects while the reader tries to get there first. A mystery looks backward, at a crime that has already happened.

What readers expect

  • A crime or puzzle early on
  • Clues, suspects and red herrings
  • A detective the reader follows
  • A solution that is surprising but fair

A tip before you start

Play fair. Every clue your detective uses should appear on the page first, ideally hidden in plain sight.

More about mystery in our book genres guide

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