The Researcher's First Murder : The new literary puzzle from the creators of TikTok famous bestselling murder mystery sensation CAIN'S JAWBONE, for fans of MURDLE and THE CYPHER FILES - John Finnemore

The Researcher's First Murder

The new literary puzzle from the creators of TikTok famous bestselling murder mystery sensation CAIN'S JAWBONE, for fans of MURDLE and THE CYPHER FILES

By: John Finnemore

Paperback | 2 April 2025

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Available: 2nd April 2025

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The next challenge for fans of Cain's Jawbone: the TikTok sensation and international bestseller.


A body is found stabbed to death in a locked room. The police find no weapon, no motive and no suspects.

However, the murderer has in their possession a box of one hundred cryptic picture postcards which - if properly understood - would explain not just this murder, but nine others. These are those cards.

Solvers must rearrange the pages of text to unravel the story and identify the murderer, victim and location for each of the ten murders. They must also consider the separate puzzles presented by the curious images on the other sides.

Can you explain The Researcher's First Murder?

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