Our group boarded the small train, using just one carriage, which slowly moved onto the tracks. Qinghan was at the controls, and when the train's headlight turned on, it illuminated about twenty meters ahead. Above the tracks were embedded things resembling light bulbs; apparently, there was once a power supply here, so turning on the train's headlight wasn't necessary. Now, we can't find a way to restore the electricity, so we have to move slowly, and Qinghan dared not drive too fast.
Because there had been an earthquake here before, we weren't sure if there were any barriers or obstacles from a collapse ahead, so moving slowly was also better in case we needed to brake in time.
"Woo woo—" I mimicked the train whistle a few times. I missed the chance to ride the small train in the park, but now I was getting to enjoy it here.
"I see why Professor Chen likes... going on missions with you. You're the most relaxed person I've ever seen underground," Wang Le said with a smile.
