ten o'clock
In the section rooms nothing in the deportment of the other cadets could emphasize the silence . It was only in the authorized visiting hours that Prescott noted the change keenly . Of course , according to the traditions of the Military Academy , Anstey and all the other loyal friends who ached to call were barred from so doing . While taps sounds at ten o'clock , and members of the three lower classes must be in bed , with lights out , at the first sound of taps , first classmen are privileged , whenever they wish , to run a light until eleven at night , provided the extra time be spent in study . One evening in early September , Dick and Greg were both busy at study table , when Dick chanced to look over some papers connected with his studies . As he did so , he drew out an officially backed sheet , and started . `` Jupiter ! ''