three o’clock
However , in spite of their courage , the strength of the little band was giving way . Glenarvan regretted they had gone so far into the interior of the mountain when he saw how exhausted his men had become . Young Robert held out manfully , but he could not go much farther . At three o'clock Glenarvan stopped and said : `` We must rest . '' He knew if he did not himself propose it , no one else would . `` Rest ? '' rejoined Paganel ; `` we have no place of shelter . ''