Clara found herself seated by a wide window on a train that never seemed to halt. Outside, the world was a perpetual blur of green fields and distant mountains, then suddenly bustling cityscapes, only to dissolve into quiet forest groves moments later. She had boarded the train hours ago, or perhaps days, she wasn't quite sure. No conductor had collected her ticket, and no announcement had ever declared a stop. The air hummed with a low, constant vibration, a quiet rhythm of journeying. Clara wondered if anyone else noticed the peculiar nature of their endless ride. She gripped the smooth, worn armrest, her mind buzzing with unanswered questions. The train cars themselves were a fascinating enigma. When Clara first walked through, she noticed they shifted.