A scream in the sleeper berth of the green train woke up half the people in the train. I patted Lao Hu on the back and said it was just a nightmare. But what he saw in his dream just now was the entrance to the underground palace on the battlefield. The system pops up a message that the coordinates of the first large tomb have been updated, and there are still four hours until arrival. Outside the window, the dark mountain shadows were pressing toward the railroad tracks.