six o’clock
This affair must be brought quickly to a close , and Prince Henry acknowledged to be the prince royal . '' `` Prince Henry goes this evening to Berlin to attend a feast given by the Prince of Prussia , '' whispered Pollnitz . `` Ah ! it is true the prince 's arrest ceases at six o'clock , but he will not forget that he needs permission to leave Potsdam . '' `` He will forget it , sire . '' The king walked up and down in silence , and his countenance assumed an angry and threatening appearance . `` This struggle must be brought to a close , and that speedily .