35,000 suspects. 17 clues. 1 killer. Can you find them before the last stop? A body has been found on the train. Everyone aboard is a suspect. Your job: eliminate them, one clue at a time, until only the guilty remain. Unlike ordinary puzzle books, The Train Killer isn't a list of names you cross off in an afternoon. It's built to be played chapter by chapter, the way a real investigation unfolds: Each chapter reveals a new clue You eliminate suspects and carry the survivors forward The pool shrinks from 35,000 down to a single killer A real story runs underneath, so by the end you'll have your own theory before the truth is revealed This is deduction with stakes. No shortcuts, no solving it in one sitting. Just you, the evidence, and a mystery that tightens with every page. Perfect for adults who love murder mysteries, logic puzzles, and games that actually make you think. Board the train. Trust no one. Find the killer.