Players must find a plaque, a sign, a date carved over a door — and type the answer to unlock the next chapter of the story. Wrong answers keep the secret.
How to build it
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Write the mystery first
Plan your story as chapters, each ending with a clue that points to a real place and a question only that place can answer.
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Set question gates
For each waypoint, enter the question ('What year is carved on the gate?') and the accepted answer. Add a hint for stuck detectives.
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Attach the story pages
Give every waypoint its narrative pages — what the detective learns there. Intro pages set the scene when players join.
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Order the trail
Switch on waypoints in order so nobody skips to the ending, and put the final scene behind a code-gated tranche.
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Publish & follow your readers
Share the link; the tracking panel shows exactly which chapter every reader has reached.
For example
“The Harbour Letters” — a six-stop Victorian mystery where the killer's name is assembled from dates on real gravestones and ship plaques.