Haunted Station Flipsi Puzzle

Haunted Station Your arm aches from holding your case all this time, so you set it down and wander back and forth, back and forth. You pause. Was that an announcement? No. You wander some more. You read the board and study the faces pinned next to it. Then you watch the clock because there is nothing else to do. Tick… tock. There is another case beside yours now. Tick… tock. You rub your hands together as the cold slips under your coat. The rails begin to hum. Very softly. Then stop.