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Mysteries & clues · The Red-Headed League

The strange job ends without warning. What no longer needs doing?

Use the end of a repeated routine to suggest that somebody's hidden preparations are complete.

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Read the scene & sources · Ending spoilers

The Red-Headed League · Arthur Conan Doyle

Full solution and timing explanation of The Red-Headed League.

The situation

After weeks of copying work, Wilson finds the League dissolved. The disappearance of his paid routine is what brings him to Holmes.

What the source describes

Holmes interprets closure as a sign that keeping Wilson absent is no longer necessary and the tunnel is complete. He combines that with the danger of discovery or removal of the bullion, and the weekend escape window, to anticipate the attempt that night.

How the choices connect

  1. An observed routine is explained by a hidden preparation need.
  2. The routine stops, suggesting that need has ended.
  3. Independent timing constraints make immediate intervention reasonable.

Watch for…

Closure alone does not logically prove the exact hour or motive. Present the detective's reasoning as an inference supported by context, not infallibility.

Read the source passages

The Red-Headed League: Holmes's final explanation of why the attempt was expected that night. ↗
The Red-Headed League only

CUESHELF INTERPRETATION

How this moves the story

A routine may exist because it serves another plan. When it stops, the investigator can ask what has changed for the person maintaining it. That creates a hypothesis about the next step, not a precise deadline by itself. A separate clue must explain why the response cannot wait.

Try it in your story

Choose a repeated action your antagonist needs only during preparation. Establish it before it stops. Write two explanations for the change, then add an independent fact that favors one and narrows the time available. Make the investigator act on an inference they can explain.

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