He dreamed about it, wrote about it. He rolled it around in the palm of his hand. Working through the “dark night of overtime” in January 2014, the 23-year-old Xu Lizhi imagined himself like a misplaced screw, “plunging vertically, lightly clinking,” lost to the factory floor. “It won’t attract anyone’s attention,” he wrote. “Just like the last time/ On a night like this/ When someone plunged to the ground.”