About six o'clock
` Yes , father ; I will . I 'll keep a sharp look-out , I promise you . ' Curdie was the only one who remained in the mine . About six o'clock the rest went away , everyone bidding him good night , and telling him to take care of himself ; for he was a great favourite with them all . ` Do n't forget your rhymes , ' said one . ` No , no , ` answered Curdie . ` It 's no matter if he does , ' said another , ` for he 'll only have to make a new one . '