As the train winds toward the karst mountains of Guilin, you realize the iron key fits a vintage locker in the very back of the caboose. Inside lies a map of a "Ghost Line"—a series of tracks that don't appear on any modern grid, leading to a village that was supposedly erased from history fifty years ago.
: Trade local snacks and tea with passengers to gain access to restricted areas of the train. The Mystery of the Iron Key chinese-train-trip-pc-game-free-download-full-version
: A mysterious shipment in the cargo hold that hums with a low, rhythmic vibration. As the train winds toward the karst mountains