midnight
By nine o'clock the camp was wrapped in silence , even the fire dying out . The moan of the wind through the pines further up the mountain helped to sing most of the scouts to sleep . Two hours later the guard was changed ; and again silence fell upon the scene . It must have been midnight and past when Paul was awakened by what he thought was the rush and roar of a railroad train . Alarmed he sat up to listen . `` Oh ! Listen to that , will you ! ''