The first time I went to the underwater city, the fear made Yang Ye remember vividly, especially the faces on the ground of the city, which were painful and wailing, twisted, dazed, sad, struggling, scared, angry, silent and sneering, shocked and fierce … Yang Ye clearly remembered that he still stepped on faces no matter how hurriedly he evaded in the bottom hall. It felt very strange that every face of his feet could open his mouth and contain Yang Ye’s feet, which made him get goose bumps all over.