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 (Author) John Finnemore
HarperCollins Publishers (Australia) Pty Ltd
HarperCollins Publishers (Australia) Pty Ltd
26th August 2025
Australia
General
Non Fiction
Historical crime and mysteries
Classic crime and mystery fiction
Fiction companions
Adventure / action fiction
Paperback
224
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
John Finnemore is a British writer, best known for his shows 'Cabin Pressure', 'Double Acts', and 'John Finnemore's Souvenir Programme' for the BBC. He has won many awards, including the Writer's Guild of Great Britain Outstanding Contribution to Writing award in 2020. He also sets Listener crosswords for the Times, under the name Emu. He solved Cain's Jawbone as a lockdown project in 2020. He sincerely hopes it will not take a worldwide pandemic to solve this one.